APA (7th ed.) Citation

Martin, R. Balthasar and Speyr: : First Steps in a Discernment of Spirits.

Chicago Style (17th ed.) Citation

Martin, Ralph. Balthasar and Speyr: : First Steps in a Discernment of Spirits.

MLA (9th ed.) Citation

Martin, Ralph. Balthasar and Speyr: : First Steps in a Discernment of Spirits.

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