Servais, W., & Varga, T. (1971). Teaching school mathematics. Penguin.
Chicago Style (17th ed.) CitationServais, Willy, and Tamas Varga. Teaching School Mathematics. Harmondsworth: Penguin, 1971.
MLA (9th ed.) CitationServais, Willy, and Tamas Varga. Teaching School Mathematics. Penguin, 1971.
Warning: These citations may not always be 100% accurate.