APA Style

Thiessen, H, C. (1949). Introductory Lectures in Systematic Theology (Cet. 1). Grand Rapids: WM. B. Eerdmans.

MLA Style

Thiessen, Henry, Clarence. "Introductory Lectures in Systematic Theology". Cet. 1 Grand Rapids: WM. B. Eerdmans, 1949. Text.