APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Abbott, John Cave, and J. P. Makeham. Agricultural Economics and Marketing in the Tropics. London: Longman, 1979.

MLA (9th ed.) Citation

Abbott, John Cave, and J. P. Makeham. Agricultural Economics and Marketing in the Tropics. Longman, 1979.