APA (7th ed.) Citation

Myerson, G. (2000). 101 key ideas existentialism (1. publ.). Teach Yourself Books.

Chicago Style (17th ed.) Citation

Myerson, George. 101 Key Ideas Existentialism. 1. publ. London: Teach Yourself Books, 2000.

MLA (9th ed.) Citation

Myerson, George. 101 Key Ideas Existentialism. 1. publ. Teach Yourself Books, 2000.

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