APA-referens (7:e uppl.)

Spence, G. (1972). A personal message from Gusty Spence. [s.n.].

Chicago-referens (17:e uppl.)

Spence, Gusty. A Personal Message from Gusty Spence. [Belfast?]: [s.n.], 1972.

MLA-referens (8:e uppl.)

Spence, Gusty. A Personal Message from Gusty Spence. [s.n.], 1972.