Gaya APA

James, I, R, F., Sokal, R, F. (1980). Biometry . New York: New York: W.H. Freeman and Company; 1980.

Gaya MLA

James, I., Rohlf,, F.., Sokal, Robert, F.. "Biometry". New York: New York: W.H. Freeman and Company; 1980, 1980. Text.