TY - BOOK AU - Cortes,Leticia Pojun TI - A survey of the environmental knowledge, comprehension, responsibility and interest of the secondary level students and teachers in the Philippines PY - 1986/// CY - East Lansing, Mich. PB - Michigan State University KW - Environmental education KW - study and teaching (Secondary) KW - Philippines N1 - Theses (Ph.D.)-Michigan State University, 1986 ER -