Simpson, Ralph David.
Overview
| Works: | 3 works in 0 publications in 0 languages | |
|---|---|---|
Titles
Productivity in natural resource industries = improvement through innovation /
by:
Simpson, Ralph David.; NetLibrary, Inc.
(Language materials, printed)
Ecosystem function & human activities : = reconciling economics and ecology /
by:
Christensen, Norman L., (1946-); Simpson, Ralph David.
(Language materials, printed)
Subjects
Industrial productivity- United States.
Estuarian ecology- Congresses.- Chesapeake Bay Region (Md. and Va.)
Coal trade- United States.
Technological innovations- United States.
Environmental economics- Congresses.- Chesapeake Bay Region (Md. and Va.)
Petroleum industry and trade- United States.
Forest products industry- United States.
Copper industry and trade- United States.