@book {19,
	title = {Supplemental Report on the Polyzoa collected by H.M.S. Challenger during the Years 1873-1876.},
	series = {Report on the Scientific Results of the Voyage of the H.M.S. "Challenger", Zoology,},
	volume = {31},
	year = {1888},
	pages = {1-41},
	author = {Waters, A.W.}
}
@book {18,
	title = {Report on the Polyzoa collected by H.M.S. Challenger during the years 1873-1876. Part 2. The Cyclostomata, Ctenostomata and Pedicellinea.},
	series = {Report on the Scientific Results of the Voyage of the H.M.S. "Challenger", Zoology,},
	volume = {17},
	year = {1886},
	pages = {1-47},
	author = {Busk, G.}
}
@book {17,
	title = {Report on the Polyzoa collected by H.M.S. Challenger during the years 1873-1876. Part 1. The Cheilostomata. },
	series = {Report on the Scientific Results of the Voyage of the H.M.S. "Challenger", Zoology,},
	volume = {10},
	year = {1884},
	pages = {1-216},
	author = {Busk, G.}
}
@book {16,
	title = {The Challenger Expedition 1872-1876: a visual index.},
	series = {Historical Studies in the Life and Earth Sciences},
	volume = {No.2},
	year = {1994},
	pages = {198pp},
	publisher = {The Natural History Museum},
	organization = {The Natural History Museum},
	address = {London},
	author = {Brunton, E.V.}
}
@book {12,
	title = {The voyage of the Challenger.},
	year = {1937},
	address = {London},
	author = {H. Swire}
}
@book {9,
	title = {Notes by a naturalist an account of observations made during the voyage of H.M.S. "Challenger" round the world in the years 1872-1876, under the command of Capt. Sir G.S. Nares, R.N.,K.C.B., F.R.S., and Capt. F.T. Thomson, R.N.},
	year = {1879},
	author = {H.N. Moseley}
}
@book {8,
	title = {The cruise of her Majesty{\textquoteright}s ship "Challenger".},
	year = {1880},
	pages = {319pp},
	publisher = {Sampson Low, Marston, Searle, \&, Rivington},
	organization = {Sampson Low, Marston, Searle, \&, Rivington},
	edition = {9th},
	address = {London},
	author = {W.J.J. Spry}
}
@book {7,
	title = {The Voyage of the Challenger},
	year = {1972},
	pages = {288pp},
	publisher = {John Murray (Publishers) Ltd},
	organization = {John Murray (Publishers) Ltd},
	address = {London},
	author = {E. Linklater}
}
@book {6,
	title = {Log-letters from "The Challenger".},
	year = {1877},
	pages = {512pp},
	publisher = {MacMillan and Co.},
	organization = {MacMillan and Co.},
	edition = {5th},
	address = {London},
	author = {Lord G Campbell}
}
@book {5,
	title = {At Sea with the Scientifics: The Challenger Letters of Joseph Matkin.},
	year = {1992},
	pages = {424pp},
	publisher = {University of Hawaii Press},
	organization = {University of Hawaii Press},
	issn = {978-0-8248-1424-3},
	author = {P.F. Rehbock}
}
