Citazione Stile APA (7a Edizione)

UNESCO & Williams-Ellis, A. (1951). A food and people geography. Univ. of London Press.

Citazione stile Chigago Style (17a edizione)

UNESCO e Amabel Williams-Ellis. A Food and People Geography. London: Univ. of London Press, 1951.

Citatione MLA (9a ed.)

UNESCO e Amabel Williams-Ellis. A Food and People Geography. Univ. of London Press, 1951.