APA (7th ed.) Zitazioa
Porter, J., & Lacey, P. (2005). Researching learning difficulties: A guide for practitioners. Paul Chapman Publishing.
Chicago Style (17th ed.) Zitazioa
Porter, Jill, eta Penny Lacey. Researching Learning Difficulties: A Guide for Practitioners. London ; Thousand Oaks, California: Paul Chapman Publishing, 2005.
MLA (9th ed.) Zitazioa
Porter, Jill, eta Penny Lacey. Researching Learning Difficulties: A Guide for Practitioners. Paul Chapman Publishing, 2005.
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