APA
(1987). A Problem Solving Approach to Mathematics for Elimentary School Teachers. Tokyo: The Benjamin/ Cummings Publishing Company.
Chicago
1987. A Problem Solving Approach to Mathematics for Elimentary School Teachers. Tokyo: The Benjamin/ Cummings Publishing Company.
Harvard
(1987). A Problem Solving Approach to Mathematics for Elimentary School Teachers. Tokyo: The Benjamin/ Cummings Publishing Company.
MLA
A Problem Solving Approach to Mathematics for Elimentary School Teachers. Tokyo: The Benjamin/ Cummings Publishing Company. 1987.