Παραπομπή APA

Gulland, J. A. (1983). Fish stock assessment: : a manual of basic methods. John wiley.

Παραπομπή Chicago Style

Gulland, J. A. Fish Stock Assessment: : A Manual of Basic Methods. New York: John wiley, 1983.

Παραπομπή MLA

Gulland, J. A. Fish Stock Assessment: : A Manual of Basic Methods. John wiley, 1983.