APA (7th ed.) Citation

Weinberg, H. L. (1959). Levels of knowing and existence. Harper.

Chicago Style (17th ed.) Citation

Weinberg, Harry L. Levels of Knowing and Existence. New York: Harper, 1959.

MLA (9th ed.) Citation

Weinberg, Harry L. Levels of Knowing and Existence. Harper, 1959.

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