Παραπομπή σε μορφή APA (7η εκδ.)

Heinzel, H., Fitter, R. S. R., & Parslow, J. L. F. (1997). Birds of Britain and Europe: With North Africa and the Middle East. Harper Collins.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Heinzel, Hermann, Richard Sidney Richmond Fitter, και John Leonard Frederick Parslow. Birds of Britain and Europe: With North Africa and the Middle East. London: Harper Collins, 1997.

Παραπομπή σε μορφή MLA (8th εκδ.)

Heinzel, Hermann, et al. Birds of Britain and Europe: With North Africa and the Middle East. Harper Collins, 1997.