Clifford, George E. creator Clifford, George E. xxu Englewood Cliffs, N.J Prentice-Hall c1990 eng xiii, 718 p. : ill. ; 29 cm. George Clifford. Previously published as Heating, ventilating, and air conditioning, c1984 by Prentice-Hall, Inc."--T.p. verso. Air conditioning Heating Ventilation 697 0135947553 89003789 120209 20180116192334.0