APA-Zitierstil (7. Ausg.)

Hayward, P. J., & Ryland, J. S. (1985). Cyclostome bryozoans: Keys and notes for the identification of the species. Brill/Backhuys.

Chicago-Zitierstil (17. Ausg.)

Hayward, Peter J., und John S. Ryland. Cyclostome Bryozoans: Keys and Notes for the Identification of the Species. London u.a: Brill/Backhuys, 1985.

MLA-Zitierstil (9. Ausg.)

Hayward, Peter J., und John S. Ryland. Cyclostome Bryozoans: Keys and Notes for the Identification of the Species. Brill/Backhuys, 1985.