APA

Smith G. T. C., . (1977). The present status of the giant tortoise, Geochelone elephantopus, on the Galapagos Islands. : .

Chicago

Smith G T Corley, . 1977. The present status of the giant tortoise, Geochelone elephantopus, on the Galapagos Islands. : .

Harvard

Smith G. T. C., . (1977). The present status of the giant tortoise, Geochelone elephantopus, on the Galapagos Islands. : .

MLA

Smith G T Corley, . The present status of the giant tortoise, Geochelone elephantopus, on the Galapagos Islands. : . 1977.