Westminster Press, 1975, edição online
Process Theology: An Introductory Exposition, com David Ray Griffin, Philadelphia: Westminster Press, 1976, ISBN 0-664-24743-1
Theology and Pastoral Care, com David Ray Griffin, 1977
 Mind in Nature: the Interface of Science and Philosophy, editado com David Ray Griffin, University Press of America, 1977, edição online
The Liberation of Life: from the Cell to the Community, com Charles Birch, 1981
Process Theology as Political Theology.