HODGSON, R. S. (1965). The Dartnell Direct Mail And Mail Order Handbook Richard S. Hodgson. Dartnell CO.
Lua i Stíl Chicago (17ú heag.)HODGSON, Richard S. The Dartnell Direct Mail And Mail Order Handbook Richard S. Hodgson. Dartnell CO, 1965.
Lua MLA (8ú heag.)HODGSON, Richard S. The Dartnell Direct Mail And Mail Order Handbook Richard S. Hodgson. Dartnell CO, 1965.
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