APA (7th ed.) Citation

Heer, F. (1962). Cristianismo europeo. Guadarrama.

Chicago Style (17th ed.) Citation

Heer, Friedrich. Cristianismo Europeo. Madrid: Guadarrama, 1962.

MLA (9th ed.) Citation

Heer, Friedrich. Cristianismo Europeo. Guadarrama, 1962.

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