Cita APA

RICHARDS, A. (1997). PLANT BREEDING SYSTEMS (2.). CHAMPMAN AND HALL.

Citación estilo Chicago

RICHARDS, A.J. PLANT BREEDING SYSTEMS. 2. LONDON: CHAMPMAN AND HALL, 1997.

Cita MLA

RICHARDS, A.J. PLANT BREEDING SYSTEMS. 2. CHAMPMAN AND HALL, 1997.