APA (7th ed.) Citation

Pablo de Leon. (1963). Guia del cielo. Juan Flors.

Chicago Style (17th ed.) Citation

Pablo de Leon. Guia Del Cielo. Barcelona: Juan Flors, 1963.

MLA (9th ed.) Citation

Pablo de Leon. Guia Del Cielo. Juan Flors, 1963.

Warning: These citations may not always be 100% accurate.