APA

Townsend H. C., . (1931). Growth and age in the giant tortoise of the Galapagos. : .

Chicago

Townsend Haskins Charles, . 1931. Growth and age in the giant tortoise of the Galapagos. : .

Harvard

Townsend H. C., . (1931). Growth and age in the giant tortoise of the Galapagos. : .

MLA

Townsend Haskins Charles, . Growth and age in the giant tortoise of the Galapagos. : . 1931.