APA (7th ed.) Citation

Aptheker, H. (1949). Why defend the rights of Communists? New Century Publishers.

Chicago Style (17th ed.) Citation

Aptheker, Herbert. Why Defend the Rights of Communists? New York, N.Y.: New Century Publishers, 1949.

MLA (9th ed.) Citation

Aptheker, Herbert. Why Defend the Rights of Communists? New Century Publishers, 1949.