Fehr, H. F., & Phillips, J. M. (1967). Teaching modern mathematics in the elementary school. Addison-Wesley.
Chicago Style (17th ed.) CitationFehr, Howard Franklin, and Jo McKeeby Phillips. Teaching Modern Mathematics in the Elementary School. [Reading, Mass.]: Addison-Wesley, 1967.
MLA (9th ed.) CitationFehr, Howard Franklin, and Jo McKeeby Phillips. Teaching Modern Mathematics in the Elementary School. Addison-Wesley, 1967.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.