APA-viite (7. p.)

Bretton, B. (1986). The edge of forever (1st Australian paperback ed.). Harlequin Books.

Chicago-viite (17. p.)

Bretton, Barbara. The Edge of Forever. 1st Australian paperback ed. Sydney: Harlequin Books, 1986.

MLA-viite (8. p.)

Bretton, Barbara. The Edge of Forever. 1st Australian paperback ed. Harlequin Books, 1986.