APA-referens (7:e uppl.)

Heijl, A. (1977). Studies on computerized perimetry. Scriptor.

Chicago-referens (17:e uppl.)

Heijl, Anders. Studies on Computerized Perimetry. Copenhagen: Scriptor, 1977.

MLA-referens (8:e uppl.)

Heijl, Anders. Studies on Computerized Perimetry. Scriptor, 1977.