1. Voices for the watershed :
پدیدآورنده : edited by Gregor Gilpin Beck and Bruce Littlejohn.
کتابخانه: Center and Library of Islamic Studies in European Languages (Qom)
موضوع : Environmental protection-- Great Lakes (North America),Environmental protection-- Saint Lawrence River Watershed.,Water-- Pollution-- Great Lakes (North America),Water-- Pollution-- Saint Lawrence River Watershed.,Water quality management-- Great Lakes (North America),Water quality management-- Saint Lawrence River Watershed.
