APA

Hoffman F. M., .Diet composition and significance of earthworms as food of havestmen (<Arachnida: Opiliones>). : .

Chicago

Hoffman Forrest M, .Diet composition and significance of earthworms as food of havestmen (<Arachnida: Opiliones>). : .

Harvard

Hoffman F. M., .Diet composition and significance of earthworms as food of havestmen (<Arachnida: Opiliones>). : .

MLA

Hoffman Forrest M, .: . .