APA-ийн эшлэл(7 дахь хэвлэлт)

Williams, P. H. (2014). Bumble bees of North America: An identification guide. Princeton University Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Williams, Paul H. Bumble Bees of North America: An Identification Guide. Princeton, New Jersey ; Oxfordshire, England: Princeton University Press, 2014.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Williams, Paul H. Bumble Bees of North America: An Identification Guide. Princeton University Press, 2014.