INGRAM, HAROLD E.
Principles and methods of supervision. Special chapter: Solving supervision problems. NM: additions & revisions.
INGRAM, HAROLD E. Principles and methods of supervision. Special chapter: Solving supervision problems. NM: additions & revisions. © 20Apr39; AA308001. Harold E. Ingram (A); 22Sep66; R393432.
Harold E. Ingram|A