APA Citation

School Mathematics Study Group, & School Mathematics Study Group. (1961). Number systems. New Haven: Yale University.

Chicago Style Citation

School Mathematics Study Group, and School Mathematics Study Group. Number Systems. New Haven: Yale University, 1961.

MLA Citation

School Mathematics Study Group, and School Mathematics Study Group. Number Systems. New Haven: Yale University, 1961.

Warning: These citations may not always be 100% accurate.