APA-viite (7. p.)

SPERLING, A. a. S. (1967). Mathematics made simple. W.H.Allen.

Chicago-viite (17. p.)

SPERLING, Abraham and STUART. Mathematics Made Simple. London: W.H.Allen, 1967.

MLA-viite (9. p.)

SPERLING, Abraham and STUART. Mathematics Made Simple. W.H.Allen, 1967.