Happel, S. (1981). Theological Method: What is Systematic Theology? Proceedings of the Catholic Theological Society of America, 36, 183-184.
Cita Chicago Style (17a ed.)Happel, Stephen. "Theological Method: What Is Systematic Theology?" Proceedings of the Catholic Theological Society of America 36 (1981): 183-184.
Cita MLA (9a ed.)Happel, Stephen. "Theological Method: What Is Systematic Theology?" Proceedings of the Catholic Theological Society of America, vol. 36, 1981, pp. 183-184.
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