TY  - BOOK
AU  - Huberty, Martin R., ed.
TI  - Natural resources
U1  - 333.7 21st ed.
PY  - 1959///
CY  - New York
PB  - McGraw-Hill Book Company
KW  - Environmental engineering
KW  - Natural resources
N1  - Bibliography: p. 543-56 includes index
ER  -