620.78
   Kall
  H
          Kallen , Howard P Handbook of instrumentation and controls ; a practical design and applications manual for the mechanical services covering steam plants , power plants , heating systems , airconditioning systems , ventilation systems , diesel plants , refrigeration , and water treatment . New York , McGraw-Hill , 1961 . 1 t . (paginación varia) ilus . , tablas . 24 cm .