Gaya APA

Leakey, R, E., Slikkerveer, L, J. (1993). Man - Ape : the quest for human's place in nature and dubois' 'missing link' . Leiden: Netherlands Foundation.

Gaya MLA

Leakey, Richard, E.., Slikkerveer, L., Jan. "Man - Ape : the quest for human's place in nature and dubois' 'missing link'". Leiden: Netherlands Foundation, 1993. BUKU.