Peterson, R. T. (1986). Peterson first guide to wildflowers of northeastern and north-central North America. Houghton Mifflin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPeterson, Roger Tory. Peterson First Guide to Wildflowers of Northeastern and North-central North America. Boston: Houghton Mifflin, 1986.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPeterson, Roger Tory. Peterson First Guide to Wildflowers of Northeastern and North-central North America. Houghton Mifflin, 1986.
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