APA

Hoffman G. L., Meyer F. P., . (1974). Parasites of freshwater fishes. U.S.A: .

Chicago

Hoffman Glenn L, Meyer Fred P, . 1974. Parasites of freshwater fishes. U.S.A: .

Harvard

Hoffman G. L., Meyer F. P., . (1974). Parasites of freshwater fishes. U.S.A: .

MLA

Hoffman Glenn L, Meyer Fred P, . Parasites of freshwater fishes. U.S.A: . 1974.