TY  - BOOK
AU  - Troost,Cornelius J.
AU  - Altman,Harold
TI  - Environmental education: a sourcebook 
SN  - 0471891002
PY  - 1972///
CY  - New York
PB  - Wiley
KW  - Environmental education
N1  - Bibliography: p. 527-538
ER  -