Mendelson, M. [ca. 2002]. Many sides : a Protagorean approach to the theory, practice and pedagogy of argument. In Argumentation library [Book]. Dordrecht [u.a.]: Kluwer.

MENDELSON, Michael, 2002. Many sides : a Protagorean approach to the theory, practice and pedagogy of argument. Dordrecht [u.a.]: Kluwer. Argumentation library, 5. ISBN 1402004028.

Mendelson, M. „Many sides : a Protagorean approach to the theory, practice and pedagogy of argument“. Argumentation library, book, Kluwer, 2002.

Mendelson, Michael: Many sides : a Protagorean approach to the theory, practice and pedagogy of argument, . Argumentation library, Dordrecht [u.a.] 2002.

Mendelson, M. (2002), Many sides : a Protagorean approach to the theory, practice and pedagogy of argument, Argumentation library, Bd. , Kluwer, Dordrecht [u.a.].