APA-referens (7:e uppl.)

Wieland, H. (1972). Cocoa and chocolate processing. Noyes Data Corp.

Chicago-referens (17:e uppl.)

Wieland, Henry. Cocoa and Chocolate Processing. Park Ridge, N.J: Noyes Data Corp, 1972.

MLA-referens (9:e uppl.)

Wieland, Henry. Cocoa and Chocolate Processing. Noyes Data Corp, 1972.