APA-Zitierstil (7. Ausg.)

Ryland, J. S., & Hayward, P. J. (1977). British Anascan Bryozoans: Cheilostomata: Anasca ; keys and notes for the identification of the species. Acad. Press.

Chicago-Zitierstil (17. Ausg.)

Ryland, John S., und Peter J. Hayward. British Anascan Bryozoans: Cheilostomata: Anasca ; Keys and Notes for the Identification of the Species. London [u.a.]: Acad. Press, 1977.

MLA-Zitierstil (9. Ausg.)

Ryland, John S., und Peter J. Hayward. British Anascan Bryozoans: Cheilostomata: Anasca ; Keys and Notes for the Identification of the Species. Acad. Press, 1977.