Untermann, R. K., & Small, R. E. (1977). Site planning for cluster housing. Van Nostrand Reinhold.
Lua i Stíl Chicago (17ú heag.)Untermann, Richard K., agus Robert E. Small. Site Planning for Cluster Housing. New York: Van Nostrand Reinhold, 1977.
Lua MLA (8ú heag.)Untermann, Richard K., agus Robert E. Small. Site Planning for Cluster Housing. Van Nostrand Reinhold, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.