1. 1
    Published 1991
    ...HC 681 .P1167 1191...
    Conference Proceeding Book
  2. 2
    Published 1989
    ...HF 3820.5 .Z7 .N5 .M495...
    Book
  3. 3
    by Ram, Yenteshwar
    Published 2003
    ...HC 685.5 .R165 2003...
    Book