Sperry, L. (1972). Learning performance and individual differences: Essays and readings. Scott.
Chicago-referens (17:e uppl.)Sperry, Len. Learning Performance and Individual Differences: Essays and Readings. Glenview, Ill: Scott, 1972.
MLA-referens (9:e uppl.)Sperry, Len. Learning Performance and Individual Differences: Essays and Readings. Scott, 1972.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.