APA-referens (7:e uppl.)

Kra, I. (1972). Automorphic forms and Kleinian groups. W.A. Benjamin.

Chicago-referens (17:e uppl.)

Kra, Irwin. Automorphic Forms and Kleinian Groups. Reading, Mass.: W.A. Benjamin, 1972.

MLA-referens (8:e uppl.)

Kra, Irwin. Automorphic Forms and Kleinian Groups. W.A. Benjamin, 1972.