Παραπομπή APA

Gukhman, A. A. (1965). Introduction to the theory of similarity. Academic press.

Παραπομπή Chicago Style

Gukhman, A A. Introduction to the Theory of Similarity. New York: Academic press, 1965.

Παραπομπή MLA

Gukhman, A A. Introduction to the Theory of Similarity. Academic press, 1965.