APA (7th ed.) Citation

Gelin, A. (1963). The key concepts of the Old Testament. Paulist Press.

Chicago Style (17th ed.) Citation

Gelin, Albert. The Key Concepts of the Old Testament. Glen Rock, N.J: Paulist Press, 1963.

MLA (9th ed.) Citation

Gelin, Albert. The Key Concepts of the Old Testament. Paulist Press, 1963.

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