APA (7th ed.) Citation

Vollert, C. O. (1965). A theology of Mary. Herder and Herder.

Chicago Style (17th ed.) Citation

Vollert, Cyril O. A Theology of Mary. [New York]: Herder and Herder, 1965.

MLA (8th ed.) Citation

Vollert, Cyril O. A Theology of Mary. Herder and Herder, 1965.