Wheeler, W. M. The North American Forms of Lasius Umbratus Nylander. Wiley.
Chicago Style (17th ed.) CitationWheeler, William Morton. The North American Forms of Lasius Umbratus Nylander. Wiley.
MLA (9th ed.) CitationWheeler, William Morton. The North American Forms of Lasius Umbratus Nylander. Wiley.
Warning: These citations may not always be 100% accurate.