APA-viite (7. p.)

BARKER, S. F. (1964). Philosophy of mathematics. Cliffs, Prentice-Hall.

Chicago-viite (17. p.)

BARKER, Stephen F. Philosophy of Mathematics. Englewood: Cliffs, Prentice-Hall, 1964.

MLA-viite (9. p.)

BARKER, Stephen F. Philosophy of Mathematics. Cliffs, Prentice-Hall, 1964.