APA Style

Begle, E, G. (1979). Critical Variables in Mathematics Education: Findings from a Survey of the Empirical Literature (Not specified). Washington, D.C.: Mathematical Association of America and National Council of Teachers of Mathematics.

MLA Style

Begle, E., G.. "Critical Variables in Mathematics Education: Findings from a Survey of the Empirical Literature". Not specified Washington, D.C.: Mathematical Association of America and National Council of Teachers of Mathematics, 1979. BOOK.