Donald R. Ploch

Legal Expert System Building: A Semi-Intelligent Computer Program Makes It Easier

Bruce J. MacLennan, Grayfield B. Gray, John Nolt, 1994 .

Computing: Communication and Control

Donald R. Ploch, 1990 .

Structural Equation Models in the Social Sciences.

Arthur S. Goldberger, Donald R. Ploch, Otis Dudley Duncan, 1974 .

A mathematical theory of social change

Robert L. Hamblin, Donald R. Ploch, R. L. Hamblin, 1975 .

Graphic Presentations of Church Attendance Using General Social Survey Data

Donald R. Ploch, Donald W. Hastings, D. Hastings, 1994 .

Some church ; some don't

Donald R. Ploch, Donald W. Hastings, D. Hastings, 1995 .

Cohort Surfaces: A Graphic Approach to Teaching Social Stability and Change

Donald R. Ploch, Donald W. Hastings, D. Hastings, 1992 .