APA

Gibbs H. L., . (1988). Heritability and selection on clutch size in darwin's medium ground finches (Geospiza fortis). : .

Chicago

Gibbs H L, . 1988. Heritability and selection on clutch size in darwin's medium ground finches (Geospiza fortis). : .

Harvard

Gibbs H. L., . (1988). Heritability and selection on clutch size in darwin's medium ground finches (Geospiza fortis). : .

MLA

Gibbs H L, . Heritability and selection on clutch size in darwin's medium ground finches (Geospiza fortis). : . 1988.