APA (7th ed.) Citation

Schoennauer, A. W. W. (1981). Problem finding and problem solving. Nelson-Hall.

Chicago Style (17th ed.) Citation

Schoennauer, Alfred W. W. Problem Finding and Problem Solving. Chicago: Nelson-Hall, 1981.

MLA (9th ed.) Citation

Schoennauer, Alfred W. W. Problem Finding and Problem Solving. Nelson-Hall, 1981.