APA Citation

Zehna, P. W., & Johnson, R. L. (1962). Elements of set theory. Boston, Massachusetts.

Chicago Style Citation

Zehna, Peter W., and Robert Leo Johnson. Elements of Set Theory. Boston, Massachusetts, 1962.

MLA Citation

Zehna, Peter W., and Robert Leo Johnson. Elements of Set Theory. Boston, Massachusetts, 1962.

Warning: These citations may not always be 100% accurate.