APA (7e ed.) Bronvermelding

Harvey, N. (1983). Agricultural research centres: A world directory of organizations and programmes (7th ed.). Longman.

Chicago (17e ed.) Bronvermelding

Harvey, Nigel. Agricultural Research Centres: A World Directory of Organizations and Programmes. 7th ed. Harlow, Essex, UK: Longman, 1983.

MLA (9e ed.) Bronvermelding

Harvey, Nigel. Agricultural Research Centres: A World Directory of Organizations and Programmes. 7th ed. Longman, 1983.