Sorsa, P., & Huttunen, P. (1975). On the pollen morphology of the urticaceae. [s.l.]: [s.n.].
Chicago Style CitationSorsa, Pentti, and Pertti Huttunen. On the Pollen Morphology of the Urticaceae. [s.l.]: [s.n.], 1975.
MLA CitationSorsa, Pentti, and Pertti Huttunen. On the Pollen Morphology of the Urticaceae. [s.l.]: [s.n.], 1975.
Warning: These citations may not always be 100% accurate.