Cita APA (7th ed.)

Aulenback, K. R. (2009). Identification Guide to the Fossil Plants of the Horseshoe Canyon Formation of Drumheller, Alberta. University Of Calgary Press.

Cita Chicago (17th ed.)

Aulenback, Kevin R. Identification Guide to the Fossil Plants of the Horseshoe Canyon Formation of Drumheller, Alberta. University Of Calgary Press, 2009.

Cita MLA (9th ed.)

Aulenback, Kevin R. Identification Guide to the Fossil Plants of the Horseshoe Canyon Formation of Drumheller, Alberta. University Of Calgary Press, 2009.