(2007). Penguin Yearbook 2008. penguin Groups.
Chicago Style citaatPenguin Yearbook 2008. New Delhi: penguin Groups, 2007.
MLA citatiePenguin Yearbook 2008. penguin Groups, 2007.
Let op: Deze citaties zijn niet altijd 100% accuraat.
(2007). Penguin Yearbook 2008. penguin Groups.
Chicago Style citaatPenguin Yearbook 2008. New Delhi: penguin Groups, 2007.
MLA citatiePenguin Yearbook 2008. penguin Groups, 2007.