Παραπομπή σε μορφή APA (7η εκδ.)

Fitter, R., Farrer, A., & Fitter, A. (1984). Collins guide to the grasses, sedges rushes and ferns of Britain and Northern Europe. Harper Collins.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Fitter, Richard, Ann Farrer, και Alastair Fitter. Collins Guide to the Grasses, Sedges Rushes and Ferns of Britain and Northern Europe. Hong kong: Harper Collins, 1984.

Παραπομπή σε μορφή MLA (8th εκδ.)

Fitter, Richard, et al. Collins Guide to the Grasses, Sedges Rushes and Ferns of Britain and Northern Europe. Harper Collins, 1984.