Primitive Man and his Behavior. Lev Vygotsky
1 Ivan Pavlov (1894-1936). Soviet physiologist. Original source not known.
2 René Descartes (1590-1650). French philosopher and physiologist. Original source not known.
3 Original source not known.
4 Lucien Lévy-Bruhl (1857-1939). French philosopher and sociologist.
5 Richard Thurnwald, The Psychology of Primitive Man.
6 Ibid.
7 Ibid.
8 Ibid.
9 Ibid.
10 Original source not known.
11 Original source not known.
12 Original source not known.
13 Original source not known.
14 Original source not known.
15 Original source not known.
16 Original source not known.
17 Original source not known. is Heinz Werner, German-American psychologist.
18. original source not known.
19 Max Wertheimer (1880-1943). German psychologist. Original source not known.
20 Richard Thurnwald, Psychology of Primitive Man.