APA-referens (7:e uppl.)

Evans, D. (1977). Mathematics: Friend or foen. Allen and Unwin.

Chicago-referens (17:e uppl.)

Evans, Dorothy. Mathematics: Friend or Foen. London: Allen and Unwin, 1977.

MLA-referens (9:e uppl.)

Evans, Dorothy. Mathematics: Friend or Foen. Allen and Unwin, 1977.