Cita APA (7a ed.)

Blanshard, P. (1977). Classics of free thought. Prometheus Books.

Cita Chicago Style (17a ed.)

Blanshard, Paul. Classics of Free Thought. Buffalo, NY: Prometheus Books, 1977.

Cita MLA (9a ed.)

Blanshard, Paul. Classics of Free Thought. Prometheus Books, 1977.