APA (7th ed.) Citation

Morris, J. (1981). How to develop problem solving using a calculator. National Council of Teachers of Mathematics.

Chicago Style (17th ed.) Citation

Morris, Janet. How to Develop Problem Solving Using a Calculator. Reston: National Council of Teachers of Mathematics, 1981.

MLA (9th ed.) Citation

Morris, Janet. How to Develop Problem Solving Using a Calculator. National Council of Teachers of Mathematics, 1981.

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