1. American Housing Survey for the U.S. in 1985, H-150-85;U.S. Bureau of the Census,1988
2. Characteristics of New Housing: 1987, C25-87-13;U.S. Bureau of the Census,1988
3. Annual Energy Review, 1987;Energy Information Administration,1988
4. Industry Shipments of Unitary Heating and Cooling Equipment,1984
5. A research into a new method of refrigeration charging and the effects of improper charging;Houcek,1984