APA (7th ed.) Citation

José Antonio de Donostia. (1923). Concordi laetitia.

Chicago Style (17th ed.) Citation

José Antonio de Donostia. Concordi Laetitia. 1923.

MLA (9th ed.) Citation

José Antonio de Donostia. Concordi Laetitia. 1923.

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