Citazione Stile APA (7a Edizione)

Gypmantasiri, P., Wiboonpongse, A., Rerkasem, B., & Craig, I. (1980). An interdisciplinary perspective of cropping systems in the Chiang Mai Valley: Key questions for research. Faculty of Agriculture, University of Chiang Mai.

Citazione stile Chigago Style (17a edizione)

Gypmantasiri, Phrek, Aree Wiboonpongse, Benjavan Rerkasem, e Iain Craig. An Interdisciplinary Perspective of Cropping Systems in the Chiang Mai Valley: Key Questions for Research. Thailand: Faculty of Agriculture, University of Chiang Mai, 1980.

Citatione MLA (9a ed.)

Gypmantasiri, Phrek, et al. An Interdisciplinary Perspective of Cropping Systems in the Chiang Mai Valley: Key Questions for Research. Faculty of Agriculture, University of Chiang Mai, 1980.