APA Citatie

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

Chicago Style citaat

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

MLA citatie

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

Let op: Deze citaties zijn niet altijd 100% accuraat.