TY  - BOOK
AU  - Kucera,Clair   L., x
AU  - x
TI  - The  challenge  of  ecology: x
SN  - x   
U1  - 574.5/KUC 
PY  - 1978///
CY  - Saint   Louis
PB  - C.  V.  Mosby
KW  - Ecology
ER  -