APA-referens (7:e uppl.)

Burrill, C. W. (1969). Real variables. Holt, Rinehart and Winston.

Chicago-referens (17:e uppl.)

Burrill, Claude W. Real Variables. New York: Holt, Rinehart and Winston, 1969.

MLA-referens (9:e uppl.)

Burrill, Claude W. Real Variables. Holt, Rinehart and Winston, 1969.