Erdtman, G., & Sorsa, P. Pollen and spore morphology/ plant taxonomy.
Chicago Edition CitationErdtman, G., and P. Sorsa. Pollen and Spore Morphology/ Plant Taxonomy.
MLA Edition CitationErdtman, G., and P. Sorsa. Pollen and Spore Morphology/ Plant Taxonomy.
Warning: These citations may not always be 100% accurate.