APA (7e ed.) Bronvermelding

Abbott, J. C. (1958). Marketing problems and improvement programs. Food and Agriculture Organization of the United Nations.

Chicago (17e ed.) Bronvermelding

Abbott, John Cave. Marketing Problems and Improvement Programs. Rome: Food and Agriculture Organization of the United Nations, 1958.

MLA (9e ed.) Bronvermelding

Abbott, John Cave. Marketing Problems and Improvement Programs. Food and Agriculture Organization of the United Nations, 1958.