APA

Goldstein R. J., . (1973). Cichlids of the world. U.S.A: .

Chicago

Goldstein Robert J, . 1973. Cichlids of the world. U.S.A: .

Harvard

Goldstein R. J., . (1973). Cichlids of the world. U.S.A: .

MLA

Goldstein Robert J, . Cichlids of the world. U.S.A: . 1973.