Citazione Stile APA (7a Edizione)

Reidy, B., & De Keyser, E. (1977). Guide to world commodity markets. Kogan Page.

Citazione stile Chigago Style (17a edizione)

Reidy, Brian, e Ethel De Keyser. Guide to World Commodity Markets. London: Kogan Page, 1977.

Citatione MLA (9a ed.)

Reidy, Brian, e Ethel De Keyser. Guide to World Commodity Markets. Kogan Page, 1977.