APA (7th ed.) Citation

Bartley, W. W. (1973). Wittgenstein. Portraits.

Chicago Style (17th ed.) Citation

Bartley, William Warren. "Wittgenstein." Portraits 1973.

MLA (8th ed.) Citation

Bartley, William Warren. "Wittgenstein." Portraits, 1973.

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