APA استشهاد

Hrbacek, k., & Jech, T. (1978). Introduction to set theory. Marcel Dekker.

استشهاد بنمط شيكاغو

Hrbacek, karel, و Thomas Jech. Introduction to Set Theory. New York: Marcel Dekker, 1978.

MLA استشهاد

Hrbacek, karel, و Thomas Jech. Introduction to Set Theory. Marcel Dekker, 1978.