Citazione Stile APA (7a Edizione)

Heaton, H., & Johnson, A. (1948). Socialism in Western Europa. New York: Foreign Policy Association.

Citazione stile Chigago Style (17a edizione)

Heaton, Herbert, e Alvin Johnson. Socialism in Western Europa. New York: Foreign Policy Association, 1948.

Citatione MLA (8a ed.)

Heaton, Herbert, e Alvin Johnson. Socialism in Western Europa. New York: Foreign Policy Association, 1948.