APA-referens (7:e uppl.)

Duncan, W. M. (1967). Problem for the dreamer. Long.

Chicago-referens (17:e uppl.)

Duncan, William Murdoch. Problem for the Dreamer. London: Long, 1967.

MLA-referens (8:e uppl.)

Duncan, William Murdoch. Problem for the Dreamer. Long, 1967.