Gaya APA

Stoll, R, R. (1961). Sets, Logic, and Axiomatic Theories (Cet. 1). United States of America: W. H. Freeman and Company.

Gaya MLA

Stoll, Robert, R.. "Sets, Logic, and Axiomatic Theories". Cet. 1 United States of America: W. H. Freeman and Company, 1961. Text.