APA-ийн эшлэл(7 дахь хэвлэлт)
Nowak, K. (1972). The psychological Study of mass communication effects: On the validity of laboratory experiments and an attempt to improve ecological validity. Econom. Research Inst., Stockholm School of Economics.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
Nowak, Kjell. The Psychological Study of Mass Communication Effects: On the Validity of Laboratory Experiments and an Attempt to Improve Ecological Validity. Stockholm: Econom. Research Inst., Stockholm School of Economics, 1972.
MLA -ийн эшлэл (9 дэх хэвлэлт)
Nowak, Kjell. The Psychological Study of Mass Communication Effects: On the Validity of Laboratory Experiments and an Attempt to Improve Ecological Validity. Econom. Research Inst., Stockholm School of Economics, 1972.
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