APA Style
Apel, William. (2006).
Signs of Peace: The Interfaith Letters of Thomas Merton .
Maryknoll, New York:
Orbis Books.
Chicago Style
Apel, William.
Signs of Peace: The Interfaith Letters of Thomas Merton.
Maryknoll, New York:
Orbis Books,
2006.
Text.
MLA Style
Apel, William.
Signs of Peace: The Interfaith Letters of Thomas Merton.
Maryknoll, New York:
Orbis Books,
2006.
Text.
Turabian Style
Apel, William.
Signs of Peace: The Interfaith Letters of Thomas Merton.
Maryknoll, New York:
Orbis Books,
2006.
Print.