Transboundary air pollution : effects and control /
United Nations.
- New York : United Nations, 1986.
- xii, 77p. ; 30 cm.
- Air pollution studies ; 3 .
9211163749 (pbk)
Air pollution.
363.7392 / UNT
9211163749 (pbk)
Air pollution.
363.7392 / UNT