Untermann, R. K., & Small, R. E. (1977). Site planning for cluster housing. Van Nostrand Reinhold.
Dyfyniad Arddull ChicagoUntermann, Richard K., and Robert E. Small. Site Planning for Cluster Housing. New York: Van Nostrand Reinhold, 1977.
Dyfyniad MLAUntermann, Richard K., and Robert E. Small. Site Planning for Cluster Housing. Van Nostrand Reinhold, 1977.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.