|
1
|
|
|
|
QH541
.R5
|
The economy of nature : A textbook in basic ecology
|
New York, [ United States ] : W. H. Freeman and Company , 1993
|
Ricklefs, Robert E
|
|
34765
|
|
2
|
|
|
|
QH541
.R5
|
Ecology
|
New York, [ United States ] : W. H. Freeman and Company , 2000
|
Ricklefs, Robert E
|
|
40594
|