APA Style
Ehrlich, Paul R. ; Ehrlich, Anne H ; Holdren, John P.. (1973).
Human Ecology: Problems and Solutions .
San Francisco:
W.H. Freeman and Company.
Chicago Style
Ehrlich, Paul R. ; Ehrlich, Anne H ; Holdren, John P..
Human Ecology: Problems and Solutions.
San Francisco:
W.H. Freeman and Company,
1973.
.
MLA Style
Ehrlich, Paul R. ; Ehrlich, Anne H ; Holdren, John P..
Human Ecology: Problems and Solutions.
San Francisco:
W.H. Freeman and Company,
1973.
.
Turabian Style
Ehrlich, Paul R. ; Ehrlich, Anne H ; Holdren, John P..
Human Ecology: Problems and Solutions.
San Francisco:
W.H. Freeman and Company,
1973.
.