APA (7th ed.) Citation

McGuigan, D., & McGuigan, A. (1981). Heat pumps: An efficient heating & cooling alternative. Garden Way Pub..

Chicago Style (17th ed.) Citation

McGuigan, Dermot, and Amanda McGuigan. Heat Pumps: An Efficient Heating & Cooling Alternative. Charlotte, Vt.: Garden Way Pub., 1981.

MLA (9th ed.) Citation

McGuigan, Dermot, and Amanda McGuigan. Heat Pumps: An Efficient Heating & Cooling Alternative. Garden Way Pub., 1981.