APA (7th ed.) Citation

Gadd, S., & Smith, T. (1989). My first judo book (1. publ.). Ippon/Crowood.

Chicago Style (17th ed.) Citation

Gadd, Stephen, and Tony Smith. My First Judo Book. 1. publ. Marlborough: Ippon/Crowood, 1989.

MLA (9th ed.) Citation

Gadd, Stephen, and Tony Smith. My First Judo Book. 1. publ. Ippon/Crowood, 1989.