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Increased Cannabis/Humulus pollen, an indicator of European agriculture in Iowa
van Zant, Kent L., Webb, Thompson, Peterson, Gilbert M., Baker, Richard G.Volume:
3
Language:
english
Journal:
Palynology
DOI:
10.1080/01916122.1979.9989192
Date:
December, 1979
File:
PDF, 2.94 MB
english, 1979