APA (7th ed.) Citation

Angelus Silesius & Franck, F. (2005). Messenger of the heart: The book of Angelus Silesius with observations by the ancient Zen masters. World Wisdom.

Chicago Style (17th ed.) Citation

Angelus Silesius and Frederick Franck. Messenger of the Heart: The Book of Angelus Silesius with Observations by the Ancient Zen Masters. Bloomington, Ind.: World Wisdom, 2005.

MLA (9th ed.) Citation

Angelus Silesius and Frederick Franck. Messenger of the Heart: The Book of Angelus Silesius with Observations by the Ancient Zen Masters. World Wisdom, 2005.