Heinrich, B. (1999). Mind of the raven : investigations and adventures with wolf-birds / Bernd Heinrich: Investigations and adventures with wolf-birds / Bernd Heinrich. New York: Cliff Street Books.
Chicago Style CitationHeinrich, Bernd. Mind of the Raven : Investigations and Adventures With Wolf-birds / Bernd Heinrich: Investigations and Adventures With Wolf-birds / Bernd Heinrich. New York: Cliff Street Books, 1999.
MLA CitationHeinrich, Bernd. Mind of the Raven : Investigations and Adventures With Wolf-birds / Bernd Heinrich: Investigations and Adventures With Wolf-birds / Bernd Heinrich. New York: Cliff Street Books, 1999.