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Lessons for Principals is written by Richard Seltzer and published by B&R Samizdat Express. It's available with International Standard Book Number or ISBN identification 1455448079 (ISBN 10) and 9781455448074 (ISBN 13).
The doctoral dissertation "Human Relations in Secondary School Administration: Case Episodes". Presented for the degree of doctor of education at the University of Maryland in 1957. The author eventually became superintendent of schools in three communities in Pennsylvania (Bristol, Huntingdon Valley, and Columbia).