APA (7th ed.) Citation

Wertheimer, M. (1961). Productive thinking / by Michael Wertheimer (Enlarged ed.). Tavistock.

Chicago Style (17th ed.) Citation

Wertheimer, Michael. Productive Thinking / by Michael Wertheimer. Enlarged ed. Tavistock, 1961.

MLA (9th ed.) Citation

Wertheimer, Michael. Productive Thinking / by Michael Wertheimer. Enlarged ed. Tavistock, 1961.

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