Swimming pool operator's handbook : A manual on the operation and maintenance of swimming pools for operators and owners in Maricopa County /
Swimming pool operator's handbook : A manual on the operation and maintenance of swimming pools for operators and owners in Maricopa County /
Foreword by S.F. Farnsworth ; Introduction by Joseph J. Winstein.
- Arizona : Maricopa County Health Department, S. a.
- 73 p.
Art
Art