E-book

Introduction to Geological Maps and Structures: Pergamon International Library of Science, Technology, Engineering and Social Studies

E-book

Electrical Load-Curve Coverage: Proceedings of the Symposium on Load-Curve Coverage in Future Electric Power Generating Systems, Organized by the Committee on Electric Power, United Nations Economic Commission for Europe, Rome, Italy, 24 – 28 October 1977

E-book

Directory of Institutions and Individuals Active in Environmentally-Sound and Appropriate Technologies: UNEP Reference Series