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APA Citation Edition CitationJanssen, C. R. (1967). A postglacial pollen diagram from a small typha swamp in northwestern Minnesota, interpreted from pollen indicators and surface samples. - New York, N.Y.
Chicago Citation Edition CitationJanssen, C. R. A Postglacial Pollen Diagram from a Small Typha Swamp in Northwestern Minnesota, Interpreted from Pollen Indicators and Surface Samples. - New York, N.Y. 1967.
MLA Citation Edition CitationJanssen, C. R. A Postglacial Pollen Diagram from a Small Typha Swamp in Northwestern Minnesota, Interpreted from Pollen Indicators and Surface Samples. - New York, N.Y. 1967.