APA stil citiranja

Langer, S. K. (1957). An introduction to symbolic logic: An introduction to symbolic logic (3d rev. ed.). New York: Dover Publications.

Chicago stil citiranja

Langer, Susanne K. An introduction to symbolic logic: An introduction to symbolic logic. 3d rev. ed. New York: Dover Publications, 1957.

MLA stil citiranja

Langer, Susanne K. An introduction to symbolic logic: An introduction to symbolic logic. 3d rev. ed. New York: Dover Publications, 1957.