Cita APA (7a ed.)

Richards, A. (1997). Plant breeding systems (2nd ed.). Chapman & Hall.

Cita Chicago Style (17a ed.)

Richards, A.J. Plant Breeding Systems. 2nd ed. London [etc.]: Chapman & Hall, 1997.

Cita MLA (9a ed.)

Richards, A.J. Plant Breeding Systems. 2nd ed. Chapman & Hall, 1997.