The book is entitled "The Study of Variable Stars Using Small Telescopes", edited by John R. Percy, hardcover 265pp, Cambridge U Press, 1986.
It contains about 25 articles in the following sections:
Coordination and Archiving of Observations
This is for the serious observer, but it accessible to most experienced people on Astromart.
Asking $12 + $3 postage via US mail book rate.