Author

Paul B. Downing

15 books found

Cover of Opal & gemstone jewelry

Opal & gemstone jewelry

Paul B. Downing · First published 2009

Cover of Opal Identification & Value (Rocks, Minerals and Gemstones)

Opal Identification & Value (Rocks, Minerals and Gemstones)

Paul B. Downing · First published 2002

Cover of Handbook of Western Fly Fishing

Handbook of Western Fly Fishing

Paul B. Downing · First published 2001

Cover of Opal

Opal

Paul B. Downing · First published 2001

Cover of Opal cutting made easy

Opal cutting made easy

Downing, Paul B. Ph.D. · First published 1993

Cover of Opal identification and value

Opal identification and value

Downing, Paul B. Ph.D. · First published 1992

Cover of Opal adventures

Opal adventures

Downing, Paul B. Ph.D. · First published 1990

Cover of 環境經濟學與政策

環境經濟學與政策

Paul B. Downing · First published 1988

Cover of Environmental economics and policy

Environmental economics and policy

Paul B. Downing · First published 1984

Cover of International comparisons in implementing pollution laws

International comparisons in implementing pollution laws

Paul B. Downing, Kenneth Hanf · First published 1983

Placeholder cover for User charges and service fees

User charges and service fees

Paul B Downing · First published 1982

Cover of Local service pricing policies and their effect on urban spatial structure

Local service pricing policies and their effect on urban spatial structure

Paul B. Downing · First published 1977

Placeholder cover for Enforcement economics in air pollution control

Enforcement economics in air pollution control

Paul B. Downing, William D. Watson, United States. Environmental Protection Agency. Office of Research and Development · First published 1973

Cover of Air pollution and the social sciences

Air pollution and the social sciences

Paul B. Downing · First published 1971

Cover of The economics of urban sewage disposal

The economics of urban sewage disposal

Paul B Downing · First published 1969