APA (7th ed.) Citation

Krug, C. A., & Quartey-Papafio, E. (1964). World cocoa survey. FAO.

Chicago Style (17th ed.) Citation

Krug, C. A., and E. Quartey-Papafio. World Cocoa Survey. Rome: FAO, 1964.

MLA (9th ed.) Citation

Krug, C. A., and E. Quartey-Papafio. World Cocoa Survey. FAO, 1964.