- Ethics and the Environment, by Sister Marjorie Keenan
- Signs of Hope: A New Global Consciousness, by Sister Marjorie Keenan
- Reflection on Pope John Paul II's "Peace With God, Peace With All Creation," by Sister Marjorie Keenan
- From the Garden to the City, An Integral Living of the Gospel, by Sister Marjorie Keenan
- The Ecological Problem Today, by Sister Marjorie Keenan
- Various Nuns, Sisters, and Brothers
