Cita APA (7th ed.)
Wurmbrand, R., & Foley, C. (1968). In God's underground. Fawcett Gold Medal Book.
Cita Chicago (17th ed.)
Wurmbrand, Richard, i Charles Foley. In God's Underground. Greenwich: Fawcett Gold Medal Book, 1968.
Cita MLA (9th ed.)
Wurmbrand, Richard, i Charles Foley. In God's Underground. Fawcett Gold Medal Book, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.