Cita APA (7a ed.)

Williams, C. N., Chew, W. Y., & Rajaratnam, J. A. (1980). Tree and Field Crops of the Wetter Regions of the Tropics (BP-326/95.). English Language Book Society/Longman.

Cita Chicago Style (17a ed.)

Williams, C. N., W. Y. Chew, y J. A. Rajaratnam. Tree and Field Crops of the Wetter Regions of the Tropics. BP-326/95. [Unknown Place]: English Language Book Society/Longman, 1980.

Cita MLA (9a ed.)

Williams, C. N., et al. Tree and Field Crops of the Wetter Regions of the Tropics. BP-326/95. English Language Book Society/Longman, 1980.