APA (7th ed.) Citation

Heidegger, M. (1968). What is called thinkingn. Harper & Row.

Chicago Style (17th ed.) Citation

Heidegger, Martin. What Is Called Thinkingn. New York: Harper & Row, 1968.

MLA (9th ed.) Citation

Heidegger, Martin. What Is Called Thinkingn. Harper & Row, 1968.

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