Cita APA (7th ed.)

Ramm, B. (1953). Types of apologetic systems: An introductory study to the Christian philosophy of religion. Van Kampen.

Cita Chicago (17th ed.)

Ramm, Bernard. Types of Apologetic Systems: An Introductory Study to the Christian Philosophy of Religion. Wheaton: Van Kampen, 1953.

Cita MLA (9th ed.)

Ramm, Bernard. Types of Apologetic Systems: An Introductory Study to the Christian Philosophy of Religion. Van Kampen, 1953.