Kinney, L. B., & Purdy, C. R. (1952). Teaching mathematics in the secondary school. Rinehart r Co.
Chicago Style (17th ed.) CitationKinney, L. B., and C. R. Purdy. Teaching Mathematics in the Secondary School. Rinehart r Co, 1952.
MLA (8th ed.) CitationKinney, L. B., and C. R. Purdy. Teaching Mathematics in the Secondary School. Rinehart r Co, 1952.
Warning: These citations may not always be 100% accurate.