Harrison. (1979). A field guide to Western bird's nests: 520 species found breeding in the United States West of theMississippi River. Houghton Mifflin.
Chicago Style (17th ed.) CitationHarrison. A Field Guide to Western Bird's Nests: 520 Species Found Breeding in the United States West of TheMississippi River. Boston: Houghton Mifflin, 1979.
MLA (8th ed.) CitationHarrison. A Field Guide to Western Bird's Nests: 520 Species Found Breeding in the United States West of TheMississippi River. Houghton Mifflin, 1979.
Warning: These citations may not always be 100% accurate.