Villegas, E. D. (1988). Values of school administrators as perceived by teachers in Bangar & Sudipen Districts School year 1987-1988.
Chicago-referens (17:e uppl.)Villegas, Efigenia D. Values of School Administrators as Perceived by Teachers in Bangar & Sudipen Districts School Year 1987-1988. 1988.
MLA-referens (9:e uppl.)Villegas, Efigenia D. Values of School Administrators as Perceived by Teachers in Bangar & Sudipen Districts School Year 1987-1988. 1988.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.