APA (7th ed.) Citation

Wassermann,Jack. (1990). What do you think?: The book of problem solving. Walker publishing company.

Chicago Style (17th ed.) Citation

Wassermann,Jack. What Do You Think?: The Book of Problem Solving. Usa: Walker publishing company, 1990.

MLA (9th ed.) Citation

Wassermann,Jack. What Do You Think?: The Book of Problem Solving. Walker publishing company, 1990.

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