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- [2] SURVEY OF SUPPLY-AND-DEMAND FOR POPLAR WOOD IN ONTARIO FORESTRY CHRONICLE, 1987, 63 (01): : 38 - 38
- [3] SUPPLY-AND-DEMAND OF SCIENTISTS AND ENGINEERS - AN INDUSTRIAL PERSPECTIVE ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1992, 204 : 5 - PROF