Ricker, W. . E. (1975). Computation and interpretation of biological statistics of fish populations. department of the environment fisheries and marine service.
استشهاد بنمط شيكاغوRicker, W E. Computation and Interpretation of Biological Statistics of Fish Populations. Ottawa: department of the environment fisheries and marine service, 1975.
MLA استشهادRicker, W E. Computation and Interpretation of Biological Statistics of Fish Populations. department of the environment fisheries and marine service, 1975.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.