Franklin

MLA

Nichols, J. T. The Fishes of Porto Rico and the Virgin Islands. New York: New York Academy of Sciences, 1930.

APA

Nichols, J. T. (1930). The fishes of Porto Rico and the Virgin Islands. New York: New York Academy of Sciences.

Chicago

Nichols, J. T. The Fishes of Porto Rico and the Virgin Islands. New York: New York Academy of Sciences, 1930.