Citazione Stile APA (7a Edizione)

Abbott, J., Makeham, J. P., & Payne, W. J. A. (1979). Agricultural economics and marketing in the tropics. Longman.

Citazione stile Chigago Style (17a edizione)

Abbott, J.C, J. P. Makeham, e W. J. A. Payne. Agricultural Economics and Marketing in the Tropics. London: Longman, 1979.

Citatione MLA (9a ed.)

Abbott, J.C, et al. Agricultural Economics and Marketing in the Tropics. Longman, 1979.