APA (7th ed.) Citation

José Antonio de Donostia & Policarpo de Iráizoz. (1931). Natus est in Bethleem.

Chicago Style (17th ed.) Citation

José Antonio de Donostia and Policarpo de Iráizoz. Natus Est in Bethleem. 1931.

MLA (9th ed.) Citation

José Antonio de Donostia and Policarpo de Iráizoz. Natus Est in Bethleem. 1931.

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