HAGEDOORN, A.L. The Relative value of the processes causing evolution Arend L.Hagdoorn and A.C. Hagedoorn-Vorstheuvel La Brand - Hague Martinus Nijhoff 1921 - v,294p. ill. With 20 figure. Subjects--Topical Terms: HUMAN EVOLUTION Dewey Class. No.: ANTH 573.2 / HAn21