1. 1
    by Firth, Raymond, 1901-2002
    Published 1965
    ...GN 671 .S6 .F527 p 1965...
    Book
  2. 2
    by Firth, Raymond, 1901-2002
    Published 1939
    ...GN 671 .S6 .F527 p...
    Book
  3. 3
    by Firth, Raymond, 1901-2002
    Published 2004
    ...GN 671 .S6 .F527 s 2004...
    Book