Cita APA (7th ed.)

Gibbon, E. (1930). Gibbon on christianity. Watts & Co.

Cita Chicago (17th ed.)

Gibbon, Edward. Gibbon on Christianity. London: Watts & Co, 1930.

Cita MLA (9th ed.)

Gibbon, Edward. Gibbon on Christianity. Watts & Co, 1930.