TY  - BOOK
AU  - Pigors, Paul John William, 1900- .
TI  - The Pigors Incident Process Of Case Study
SN  - 877781494
U1  - 371.148 PIG 1980 
PY  - 1980///
PB  - Educational Technology Publications
N1  - THE INSTRUCTIONAL DESIGN LIBRARY ; V.29; Includes bibliographical references
ER  -