APA
Thomas Pennant, . (2009). History of Quadrupeds: Volume 2. NEW YORK: Cambridge University Press.
Chicago
Thomas Pennant, . 2009. History of Quadrupeds: Volume 2. NEW YORK: Cambridge University Press.
Harvard
Thomas Pennant, . (2009). History of Quadrupeds: Volume 2. NEW YORK: Cambridge University Press.
MLA
Thomas Pennant, . History of Quadrupeds: Volume 2. NEW YORK: Cambridge University Press. 2009.