" (1999) ISBN 0-674-00543-0*"Biology and the foundation of ethics" (1999) ISBN 0-521-55923-5*"Can a Darwinian be a Christian?
" (1999) ISBN 0-674-00543-0* "Biology and the foundation of ethics" (1999) ISBN 0-521-55923-5* "Can a Darwinian be a Christian?