Citazione Stile APA (7a Edizione)

Guthrie, K. S. (1919). Romance of two centuries: A tale of the year 2025. Platonist Press.

Citazione stile Chigago Style (17a edizione)

Guthrie, Kenneth Sylvan. Romance of Two Centuries: A Tale of the Year 2025. Teocalli: Platonist Press, 1919.

Citatione MLA (9a ed.)

Guthrie, Kenneth Sylvan. Romance of Two Centuries: A Tale of the Year 2025. Platonist Press, 1919.