APA aipamena

Langer, S. K. (1953). An introduction to symbolic logic. New York: Dover Publications.

Chicago Style aipamena

Langer, Susanne Katherina. An Introduction to Symbolic Logic. New York: Dover Publications, 1953.

MLA aipamena

Langer, Susanne Katherina. An Introduction to Symbolic Logic. New York: Dover Publications, 1953.

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