Παραπομπή APA

Gorham,Charles T. (1930). Religion as a bar to progress. Watts & Co.

Παραπομπή Chicago Style

Gorham,Charles T. Religion as a Bar to Progress. London: Watts & Co, 1930.

Παραπομπή MLA

Gorham,Charles T. Religion as a Bar to Progress. Watts & Co, 1930.