Campbell, D. (1995). Learning consultation: A systemic framework. Karnac Books.
Lua i Stíl Chicago (17ú heag.)Campbell, David. Learning Consultation: A Systemic Framework. London: Karnac Books, 1995.
Lua MLA (9ú heag.)Campbell, David. Learning Consultation: A Systemic Framework. Karnac Books, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.