KESSINGER PUB CO Sivumäärä: 350 sivua Asu: Pehmeäkantinen kirja Julkaisuvuosi: 2010, 01.09.2010 (lisätietoa) Kieli: Englanti
1927. An analysis of human behavior from a novel standpoint. Professor Ritter uses the activities of animals as a key to understanding the activities of human beings in the same way that the structure of animals has been utilized as a background for understanding the physical side of man.