Bolton, C., & Lowe, G. (2005). A hierarchy of failures-based models: Theory and application. Elsevier.
Lua i Stíl Chicago (17ú heag.)Bolton, C., agus G. Lowe. A Hierarchy of Failures-based Models: Theory and Application. Elsevier, 2005.
Lua MLA (9ú heag.)Bolton, C., agus G. Lowe. A Hierarchy of Failures-based Models: Theory and Application. Elsevier, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.