Stewart, J. S. (1946). Heralds of God. Charles Scribner's Sons.
Cita Chicago (17th ed.)Stewart, James S. Heralds of God. Charles Scribner's Sons, 1946.
Cita MLA (9th ed.)Stewart, James S. Heralds of God. Charles Scribner's Sons, 1946.
Atenció: Aquestes cites poden no estar 100% correctes.