TY  - GEN
AU  - Witters,Weldon L.
AU  - Agarwal,V.K.
TI  - Environmental biology: principles of ecology 
SN  - 8121908590
U1  - 628.5 
PY  - 1978///
CY  - Dubuque, Iowa
PB  - Kendall/Hunt Pub. Co.
KW  - Human ecology
KW  - Man
KW  - Influence on nature
KW  - Pollution
N1  - Bibliography: p. 219
ER  -