ENGEL, J. F. (1993). Consumer Behavior James F. Engel, Roger D. Blackwell And Paul W. Miniard. The Dryden.
Lua i Stíl Chicago (17ú heag.)ENGEL, James F. Consumer Behavior James F. Engel, Roger D. Blackwell And Paul W. Miniard. The Dryden, 1993.
Lua MLA (8ú heag.)ENGEL, James F. Consumer Behavior James F. Engel, Roger D. Blackwell And Paul W. Miniard. The Dryden, 1993.
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