Paul B. Downing

Identifiers

Open LibraryOL1349046A

Top Subjects

Opals (3)
Pollution (2)
Economic aspects (2)
Environmental policy (2)
Nature (2)
Gem cutting (2)
Sewage disposal (1)

Books by Paul B. Downing

Total count: 10

The economics of urban sewage disposal

Praeger1969-01-01
Air Pollution and the Social SciencesFormulating and Implementing Control Programs

ABC-CLIO, LLC1971-01-01
Air Pollution and the Social SciencesFormulating and Implementing Control Programs (Special Studies in U.S. Economic, Social and Political Issues)

Irvington Pub1971-06-01
Enforcement economics in air pollution control

Washington Environmental Research Center; Office of Research and Development, U.S. Environmental Protection Agency; for sale by the Supt. of Docs., U.S. Govt. Print. Off.1973-01-01
Environmental Economics and Policy

Stationery Office, The1984-01-01
環境經濟學與政策Chu ban.

Lian jing chu ban shi ye gong si1988-01-01
OpalAdvanced Cutting & Setting (Jewelry Crafts)

Majestic Press2001-01-01
Handbook of Western Fly Fishing1st edition

Majestic Press2001-01-01
Opal Identification & Value (Rocks, Minerals and Gemstones)2nd edition

Gem Guides Book Company2002-11-22
Opal & gemstone jewelrycutting, designing, setting : a step-by-step lapidary instructional guide

Majestic Press2009-01-01