1. 1
    by Burns, Lawrence D.
    Published 1984
    ...HE 336 .C5 .B967 m...
    Book
  2. 2
    Published 1979
    ...HE 199.9 .B419...
    Conference Proceeding Book
  3. 3
    Published 1981
    ...HE 336 .C5 .I61 4th...
    Book
  4. 4
    by Ortúzar S., Juan de Dios
    Published 1990
    ...HE 147.7 .W742...
    Book
  5. 5
    by Ortúzar S., Juan de Dios
    Published 2001
    ...HE 147.7 .W742 2001...
    Book
  6. 6
    Published 1997
    ...HE 336 .C5 .A188...
    Book
  7. 7
    Published 2000
    ...HE 147.7 .H236 2000...
    Book
  8. 8
    Published 2008
    ...HE 147.7 .H236 2008...
    Book