Lua APA (7ú heag.)
Gambrill, E. D., & Gibbs, L. E. (2009). Critical thinking for helping professionals: A skills-based workbook (3rd. ed.). Oxford University.
Lua i Stíl Chicago (17ú heag.)
Gambrill, Eileen D., agus Leonard E. Gibbs. Critical Thinking for Helping Professionals: A Skills-based Workbook. 3rd. ed. Oxford, [England] ; New York: Oxford University, 2009.
Lua MLA (9ú heag.)
Gambrill, Eileen D., agus Leonard E. Gibbs. Critical Thinking for Helping Professionals: A Skills-based Workbook. 3rd. ed. Oxford University, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.