John R. Anderson. (1981). Cognitive Skills and Their Acquisition. : Lawrence Erlbaum Associates, Inc.
Lua i Stíl Chicago (17ú heag.)John R. Anderson. Cognitive Skills and Their Acquisition. Hillsdale, New Jersey: : Lawrence Erlbaum Associates, Inc, 1981.
Lua MLA (8ú heag.)John R. Anderson. Cognitive Skills and Their Acquisition. : Lawrence Erlbaum Associates, Inc, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.