APA

Howard R., Moore A., . (1980). A complete checklist of the birds of the world. Oxford: Oxford University Press.

Chicago

Howard Richard, Moore Alick, . 1980. A complete checklist of the birds of the world. Oxford: Oxford University Press.

Harvard

Howard R., Moore A., . (1980). A complete checklist of the birds of the world. Oxford: Oxford University Press.

MLA

Howard Richard, Moore Alick, . A complete checklist of the birds of the world. Oxford: Oxford University Press. 1980.