Cita APA (7a ed.)

Isaac, G. L., & McCown, E. R. (1976). Human origins: Louis Leakey and the East African evidence. Benjamin.

Cita Chicago Style (17a ed.)

Isaac, Glynn Llywelyn, y Elizabeth R. McCown. Human Origins: Louis Leakey and the East African Evidence. Menlo Park (Calif.) [etc.]: Benjamin, 1976.

Cita MLA (9a ed.)

Isaac, Glynn Llywelyn, y Elizabeth R. McCown. Human Origins: Louis Leakey and the East African Evidence. Benjamin, 1976.