Cita APA (7a ed.)

Yu, C. L., & Buckwell, A. (1991). Chinese grain economy and policy. CAB International.

Cita Chicago Style (17a ed.)

Yu, Chen Liang, y Allan Buckwell. Chinese Grain Economy and Policy. Wallingford, UK: CAB International, 1991.

Cita MLA (9a ed.)

Yu, Chen Liang, y Allan Buckwell. Chinese Grain Economy and Policy. CAB International, 1991.