Hall, M. (1987). Mo'-ti-va-tion: How to be a positive force in a negative world. Good-News encounters, inc.
Lua i Stíl Chicago (17ú heag.)Hall, Michael. Mo'-ti-va-tion: How to Be a Positive Force in a Negative World. Missouri: Good-News encounters, inc, 1987.
Lua MLA (9ú heag.)Hall, Michael. Mo'-ti-va-tion: How to Be a Positive Force in a Negative World. Good-News encounters, inc, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.