Cita APA (7th ed.)

Ryder, E. J. (1999). Lettuce, endive and chicory. CABI.

Cita Chicago (17th ed.)

Ryder, E. J. Lettuce, Endive and Chicory. Wallingford: CABI, 1999.

Cita MLA (9th ed.)

Ryder, E. J. Lettuce, Endive and Chicory. CABI, 1999.