ESTES, W. Handbook of Learning and Cognitive Processes. Lawrence Erlbaum Associates, Publishers.
Lua i Stíl Chicago (17ú heag.)ESTES, W.K. Handbook of Learning and Cognitive Processes. Lawrence Erlbaum Associates, Publishers.
Lua MLA (8ú heag.)ESTES, W.K. Handbook of Learning and Cognitive Processes. Lawrence Erlbaum Associates, Publishers.
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