I. M. Gray

Wood fuel supply strategies. Volume 2: harvesting trials summaries.

C. P. Mitchell, J. B. Hudson, D. N. A. Gardner, 1990 .

Wood fuel supply strategies. Volume 1. The report. An investigation based on trials of equipment for harvesting, processing, storing and transporting wood for fuel.

C. P. Mitchell, J. B. Hudson, D. N. A. Gardner, 1990 .