Tufail, J., & Lyon, K. (2007). Introducing advocacy: The first book of speaking up a plain text guide to advocacy (ed.). Jessica Kingsley Publishers.

Tufail, John, and Kate Lyon. Introducing Advocacy: The First Book of Speaking Up a Plain Text Guide to Advocacy. ed. London: Jessica Kingsley Publishers, 2007.

Tufail, John, and Kate Lyon. Introducing Advocacy: The First Book of Speaking Up a Plain Text Guide to Advocacy. ed. Jessica Kingsley Publishers, 2007.