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Marquis Who's Who Honors Douglas D. Piirto, Ph.D., with Inclusion in Who's Who in the World
Dr. Piirto is recognized for his expertise as a consulting forester and professor emeritus of more than 45 years
Marquis Who's Who Honors Douglas D. Piirto, Ph.D., with Inclusion in Who's Who in the World
Dr. Piirto is recognized for his expertise as a consulting forester and professor emeritus of more than 45 years