APA

Gudger E. W., . (1933). A second whale shark, Rhineodon typus, at the Galapagos Islands. : .

Chicago

Gudger E W, . 1933. A second whale shark, Rhineodon typus, at the Galapagos Islands. : .

Harvard

Gudger E. W., . (1933). A second whale shark, Rhineodon typus, at the Galapagos Islands. : .

MLA

Gudger E W, . A second whale shark, Rhineodon typus, at the Galapagos Islands. : . 1933.