Citazione Stile APA (7a Edizione)

Porter, J., & Lacey, P. (2005). Researching learning difficulties: A guide for practitioners. P.C.P. ; SAGE Publications.

Citazione stile Chigago Style (17a edizione)

Porter, Jill, e Penny Lacey. Researching Learning Difficulties: A Guide for Practitioners. London : Thousand Oaks, CA: P.C.P. ; SAGE Publications, 2005.

Citatione MLA (8a ed.)

Porter, Jill, e Penny Lacey. Researching Learning Difficulties: A Guide for Practitioners. P.C.P. ; SAGE Publications, 2005.