Underhill, R. G. (1972). Teaching elementary school mathematics. Charles E. Merrill Publ.
Chicago Style CitationUnderhill, Robert G. Teaching Elementary School Mathematics. Charles E. Merrill Publ, 1972.
MLA CitationUnderhill, Robert G. Teaching Elementary School Mathematics. Charles E. Merrill Publ, 1972.
Warning: These citations may not always be 100% accurate.