Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

Howard, Richard, i Alick Moore. A Complete Checklist of the Birds of the World. Oxford: Oxford University, 1980.

Cita MLA (9th ed.)

Howard, Richard, i Alick Moore. A Complete Checklist of the Birds of the World. Oxford University, 1980.