TY  - BOOK
AU  - 
AU  - 
TI  - encyclopaedia of natural history and ecology: nature hobbies
U1  - 502(03) 
PY  - 1971///
CY  - New York
PB  - HS Stuttman
KW  - Ecology
KW  - Environment
KW  - Biology
KW  - Science
KW  - Chemistry
N1  -  16 vol
ER  -