APA (7th ed.) Citation

Cox, B. M. English Callovian (Middle Jurassic) perisphinctid ammonites. Palaeontographical Society.

Chicago Style (17th ed.) Citation

Cox, B. M. English Callovian (Middle Jurassic) Perisphinctid Ammonites. London: Palaeontographical Society.

MLA (9th ed.) Citation

Cox, B. M. English Callovian (Middle Jurassic) Perisphinctid Ammonites. Palaeontographical Society.

Warning: These citations may not always be 100% accurate.