TY - BOOK ED - National Education Association of the United States. TI - The assistant principalship in public elementary schools--1969: a research study AV - LB2822 .N39 U1 - 372.1/2/0120973 PY - 1970///] CY - [Washington] PB - National Association of Elementary School Principals KW - School principals KW - Local N1 - 920901 ER -