APA-ийн эшлэл(7 дахь хэвлэлт)
RUSSELL, T., & AYER, F. (1988). THE EFFECTS OF A DIRECT-MAIL INFORMATIONAL CAMPAIGN ON ATTITUDES OF INDUSTRIAL MANAGERS TOWARD THE MENTALLY RETARDED POPULATION.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
RUSSELL, T., ба F.E AYER. THE EFFECTS OF A DIRECT-MAIL INFORMATIONAL CAMPAIGN ON ATTITUDES OF INDUSTRIAL MANAGERS TOWARD THE MENTALLY RETARDED POPULATION. 1988.
MLA -ийн эшлэл (9 дэх хэвлэлт)
RUSSELL, T., ба F.E AYER. THE EFFECTS OF A DIRECT-MAIL INFORMATIONAL CAMPAIGN ON ATTITUDES OF INDUSTRIAL MANAGERS TOWARD THE MENTALLY RETARDED POPULATION. 1988.
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