00373cam a2200145ua 45000010005000000080039000050400009000440820008000531000025000612450057000862500009001433000017001526530015001696530043001841935110811n        ii  |||gr||||Z||||||eng  cMAIN  a150  aKar, B. C.,eAuthor.1 aStudy of its principles and psychologycby B. C. Kar  a1st.  a318p:c23cm.  aPsychology  aStudy of its principles and psychology