Cita APA (7th ed.)
Kurtén, B., & Vasari, Y. (1960). On the Date of Peking man.
Cita Chicago (17th ed.)
Kurtén, Björn, i Yrjö Vasari. On the Date of Peking Man. 1960.
Cita MLA (9th ed.)
Kurtén, Björn, i Yrjö Vasari. On the Date of Peking Man. 1960.
Atenció: Aquestes cites poden no estar 100% correctes.