Zoology
Zoology
AXELROD, HERBERT A. and LEONHARD P. SCHULTZ.
Handbook of Tropical Aquarium ..New York, McGraw-Hill, (1955).
JORDAN, DAVID STARR and BARTON WARREN EVERMANN.
The Fishes of North and Middle..Washington, Government Printing Office, 1900.
JORDAN, DAVID STARR and BARTON WARREN EVERMANN.
The Fishes of North and Middle..Washington, Government Printing Office, 1898.
THE GREENLAND WHALE (BOWHEAD WHALE) - ESCHRICHT, D.F. & J. REINHARDT.
Om Nordhvalen (Balæna Mysticet..(København, 1861).
DARWIN, CHARLES.
Om Arternes Oprindelse ved Kva..Kjøbenhavn [Copenhagen], 1872 - (Kristiania [Oslo], 1890) - Stockholm, 1871.