In Transducers'91, there is a notice which says:

Available from IEEE, 445 Hoes Lane, P.O.Box 1331,
Piscataway, NJ 08855-1331, USA
IEEE Catalog Number 91CH2817-5

The IEEE catalog number of Transducers'85 may be 85CH2127-9 and a copy may be
available from IEEE. (But I am not sure about this.)

Murat Okyar