Brace, C. The stages of human evolution: Human and cultural origins. Prentice-Hall.
Cita Chicago (17th ed.)Brace, C.Loring. The Stages of Human Evolution: Human and Cultural Origins. Englewood Cliffs, N.J: Prentice-Hall.
Cita MLA (9th ed.)Brace, C.Loring. The Stages of Human Evolution: Human and Cultural Origins. Prentice-Hall.
Atenció: Aquestes cites poden no estar 100% correctes.