Marks, J. (2002). What it means to be 98% chimpanzee: Apes, people, and their genes. University of California Press.
Chicago-referens (17:e uppl.)Marks, Jonathan. What It Means to Be 98% Chimpanzee: Apes, People, and Their Genes. Berkeley: University of California Press, 2002.
MLA-referens (9:e uppl.)Marks, Jonathan. What It Means to Be 98% Chimpanzee: Apes, People, and Their Genes. University of California Press, 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.