Gaya APA

Leakey, R., Walker, A. (1993). The Nariokotome Homo Erectus Skeleton (Ed. 1). New York: Printed In The United States Of America.

Gaya MLA

Leakey, Richard., Walker, Alan. "The Nariokotome Homo Erectus Skeleton". Ed. 1 New York: Printed In The United States Of America, 1993. Text.