APA (7th ed.) Citation

Ashton, M. R. (1978). Heuristic methods in problem solving in ninth grade algebra.

Chicago Style (17th ed.) Citation

Ashton, Madeleine Rose. Heuristic Methods in Problem Solving in Ninth Grade Algebra. 1978.

MLA (9th ed.) Citation

Ashton, Madeleine Rose. Heuristic Methods in Problem Solving in Ninth Grade Algebra. 1978.

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