Lua APA (7ú heag.)
(1980). Recreation and leisure: Issues in an era of change. Venture Publishing.
Lua i Stíl Chicago (17ú heag.)
Recreation and Leisure: Issues in an Era of Change. Pennsylvania: Venture Publishing, 1980.
Lua MLA (9ú heag.)
Recreation and Leisure: Issues in an Era of Change. Venture Publishing, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.