Cita APA (7a ed.)

Gukman, A. A. (1965). Introduction to the Theory of Similarity. Academic Press.

Cita Chicago Style (17a ed.)

Gukman, A. A. Introduction to the Theory of Similarity. New York: Academic Press, 1965.

Cita MLA (9a ed.)

Gukman, A. A. Introduction to the Theory of Similarity. Academic Press, 1965.