Cita APA

Spitzer, H. F. (1967). Teaching elementary school mathematics. Bostan, Mass.: Houghton Mifflin.

Chicago Style Citation

Spitzer, Herbert F. Teaching Elementary School Mathematics. Bostan, Mass.: Houghton Mifflin, 1967.

Cita MLA

Spitzer, Herbert F. Teaching Elementary School Mathematics. Bostan, Mass.: Houghton Mifflin, 1967.

Atenció: Aquestes cites poden no estar 100% correctes.