TY  - BOOK
AU  - Parson,Ruben L
AU  - Guernsey,James Lee
TI  - Conserving American resources
SN  - 0131677675
PY  - 1972///
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
KW  - Conservation of natural resources
KW  - United States
N1  - Includes bibliographical references
ER  -