Cita APA

Abbott, J. C., & Makeham, J. P. (1980). Agricultural economy and marketing in the tropics. Longman Group Ltd.

Chicago Edition Citation

Abbott, J C., i J P. Makeham. Agricultural Economy and Marketing in the Tropics. London: Longman Group Ltd, 1980.

Cita MLA

Abbott, J C., i J P. Makeham. Agricultural Economy and Marketing in the Tropics. Longman Group Ltd, 1980.