Beyer, B. K. (1991). Teaching thinking skills: A handbook for secondary school teachers. Allyn and Bacon.
Chicago-referens (17:e uppl.)Beyer, Barry K. Teaching Thinking Skills: A Handbook for Secondary School Teachers. Boston: Allyn and Bacon, 1991.
MLA-referens (9:e uppl.)Beyer, Barry K. Teaching Thinking Skills: A Handbook for Secondary School Teachers. Allyn and Bacon, 1991.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.