TY  - BOOK
AU  - Shirley Walter Allen
AU  -  Justin Wilkinson Leonard, 
TI  - Conserving Natural Resources
U1  - 333 
PY  - 1966///
CY  - New York
PB  - Mc Graw Hill Book Co
N1  - Shirley Walter Allen & Justin Wilkinson Leonard: Conserving Natural Resources.  (3 rd Ed)  New York.  Mc Graw Hill Book Co, 1966.--(333WAL)
ER  -