APA (7th ed.) Citation

O'Keeffe, T. (1982). Tillich, Ontology and God. Irish theological quarterly, 49(1), 19-36. doi:10.1177/002114008204900102

Chicago Style (17th ed.) Citation

O'Keeffe, Terence. "Tillich, Ontology and God." Irish Theological Quarterly 49, no. 1 (1982): 19-36, https://doi.org/10.1177/002114008204900102.

MLA (8th ed.) Citation

O'Keeffe, Terence. "Tillich, Ontology and God." Irish Theological Quarterly, vol. 49, no. 1, 1982, pp. 19-36, https://doi.org/10.1177/002114008204900102.

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