The Psychology of Religion: An Empirical Approach (3rd edn.), by Bernard Spilka, Ralph W. Hood Jr., Bruce Hunsberger and Richard Gorsuch. New York: Guilford, 2003. 671pp., hbk. ISBN 9781572309012.

@inproceedings{Hay2009ThePO,
  title={The Psychology of Religion: An Empirical Approach (3rd edn.), by Bernard Spilka, Ralph W. Hood Jr., Bruce Hunsberger and Richard Gorsuch. New York: Guilford, 2003. 671pp., hbk. ISBN 9781572309012.},
  author={David Hay},
  year={2009}
}