Sills, M. D. (2016). Hearts, heads, & hands: A manual for teaching others to teach others. B & H Publishing Group.
Lua i Stíl Chicago (17ú heag.)Sills, M. David. Hearts, Heads, & Hands: A Manual for Teaching Others to Teach Others. Nashville, Tennessee: B & H Publishing Group, 2016.
Lua MLA (9ú heag.)Sills, M. David. Hearts, Heads, & Hands: A Manual for Teaching Others to Teach Others. B & H Publishing Group, 2016.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.