APA (7th ed.) Citation

Righetti, M., & Urtasun, C. Historia de la Liturgia.

Chicago Style (17th ed.) Citation

Righetti, Mario, and Cornelio Urtasun. Historia De La Liturgia.

MLA (9th ed.) Citation

Righetti, Mario, and Cornelio Urtasun. Historia De La Liturgia.

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