APA stil citiranja

Hellmich, E. W. (1937). The mathematics in certain elementary social studies in secondary schools and colleges: The mathematics in certain elementary social studies in secondary schools and colleges. New York: Columbia University.

Chicago stil citiranja

Hellmich, Eugene W. The mathematics in certain elementary social studies in secondary schools and colleges: The mathematics in certain elementary social studies in secondary schools and colleges. New York: Columbia University, 1937.

MLA stil citiranja

Hellmich, Eugene W. The mathematics in certain elementary social studies in secondary schools and colleges: The mathematics in certain elementary social studies in secondary schools and colleges. New York: Columbia University, 1937.