APA

Gibbs H. L., . (1990). Cultural evolution of male song types in Darwin's medium ground finches, Geospiza fortis. : .

Chicago

Gibbs H L, . 1990. Cultural evolution of male song types in Darwin's medium ground finches, Geospiza fortis. : .

Harvard

Gibbs H. L., . (1990). Cultural evolution of male song types in Darwin's medium ground finches, Geospiza fortis. : .

MLA

Gibbs H L, . Cultural evolution of male song types in Darwin's medium ground finches, Geospiza fortis. : . 1990.