The encyclopedia of prehistoric life/ edited by Rodney Steel, Anthony P. Harvey
McGraw-HIll, 1979
Buku Teks
Botha, Rudolf P.
Language evolution : the windows approach
Cambridge University Press, 2016
Buku Teks SO
Life before man / by the editors of Time-Life Book
Time-Life Books, 1972
Buku Teks
Life before man / by the editors of Time-Life Books.
Time-Life Books, 1972
Buku Teks
Volpe, E. Peter (Erminio Peter)
Understanding evolution
Universal Books Stall, 1996"
Buku Teks