Straub, R. O. (2008). Telecourse student guide to accompany transitions throughour the life span (Third edition.). Coast Learning Systems.
Lua i Stíl Chicago (17ú heag.)Straub, Richar O. Telecourse Student Guide to Accompany Transitions Throughour the Life Span. Third edition. [Fountain Valle, California]: Coast Learning Systems, 2008.
Lua MLA (9ú heag.)Straub, Richar O. Telecourse Student Guide to Accompany Transitions Throughour the Life Span. Third edition. Coast Learning Systems, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.