APA (7th ed.) Citation

Blackham, H. J. (1961). Six existentialist thinkers / by H.J. Blackham. Routledge and Kegan Paul.

Chicago Style (17th ed.) Citation

Blackham, H. J. Six Existentialist Thinkers / by H.J. Blackham. Routledge and Kegan Paul, 1961.

MLA (9th ed.) Citation

Blackham, H. J. Six Existentialist Thinkers / by H.J. Blackham. Routledge and Kegan Paul, 1961.

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