APA-referens (7:e uppl.)

Elgerd, O. I. (1967). Control systems theory. McGraw-Hill.

Chicago-referens (17:e uppl.)

Elgerd, Olle Ingemar. Control Systems Theory. New York: McGraw-Hill, 1967.

MLA-referens (9:e uppl.)

Elgerd, Olle Ingemar. Control Systems Theory. McGraw-Hill, 1967.