J.A. Gulland. (1975). Manual of Methods for fisheries Resource Survey and Appraisal part5- Objective s and Basic Methods. FAO of the United Nations.
Chicago-стиль цитированияJ.A. Gulland. Manual of Methods for Fisheries Resource Survey and Appraisal Part5- Objective S and Basic Methods. Rome: FAO of the United Nations, 1975.
MLA-цитированиеJ.A. Gulland. Manual of Methods for Fisheries Resource Survey and Appraisal Part5- Objective S and Basic Methods. FAO of the United Nations, 1975.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.