Παραπομπή σε μορφή APA (7η εκδ.)

Harper Collins, Fitter, R., Heinzel, H., & Parslow, J. (1995). Birds of Britain and Europe with North Africa and Middle East. Harper Collins.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Harper Collins, Richard Fitter, Hermann Heinzel, και John Parslow. Birds of Britain and Europe with North Africa and Middle East. London: Harper Collins, 1995.

Παραπομπή σε μορφή MLA (8th εκδ.)

Harper Collins, et al. Birds of Britain and Europe with North Africa and Middle East. Harper Collins, 1995.