Zutterman, Paul C2012-03-132012-03-1319671967Source: Dissertation Abstracts International, Volume: 72-04, Section: B, page: .http://hdl.handle.net/10393/20830http://dx.doi.org/10.20381/ruor-8658Abstract not available.165 p.Psychology, Psychometrics.H-T-P drawings: Their meaning and the levels hypothesisThesis