THE HUMAN PERSPECTIVECLIFFORD P. R.SCOTTISH JOURNAL OF THEOLOGY. 1974, Vol 27, Num 1, pp 12-19Article

Ecumenical Pioneering at Selly OakCLIFFORD, P. R.Baptist (The) Quarterly London. 1979, Vol 28, Num 2, pp 83-87Article

The Significant-other Behavior Questionnaire (SBQ): an instrument for measuring the behavior of significant others towards a person's drinking and abstinenceLOVE, C. T; LONGABAUGH, R; CLIFFORD, P. R et al.Addiction (Abingdon. Print). 1993, Vol 88, Num 9, pp 1267-1279, issn 0965-2140Article

Polydrug use in an inpatient treatment sample of problem drinkersMARTIN, C. S; CLIFFORD, P. R; MAISTO, S. A et al.Alcoholism, clinical and experimental research. 1996, Vol 20, Num 3, pp 413-417, issn 0145-6008Article

Discerning the epidemiology of drug use among a sample of college studentsCLIFFORD, P. R; EDMUNDSON, E; KOCH, W. R et al.Journal of drug education. 1989, Vol 19, Num 3, pp 209-223, issn 0047-2379Article