Cita APA

Langer, S. K. (1953). An introduction to symbolic logic Dover.

Citación estilo Chicago

Langer, Susanne K. An Introduction to Symbolic Logic. 2nd ed., rev. New York: Dover, 1953.

Cita MLA

Langer, Susanne K. An Introduction to Symbolic Logic. 2nd ed., rev. New York: Dover, 1953.