Não informado. (1957). SUBJECT GUIDE TO BOOKS IN PRINT: AN INDEX TO PUBLISHER'S TRADE LIST. R. R. Bowker.
Chicago-referens (17:e uppl.)Não informado. SUBJECT GUIDE TO BOOKS IN PRINT: AN INDEX TO PUBLISHER'S TRADE LIST. New York: R. R. Bowker, 1957.
MLA-referens (8:e uppl.)Não informado. SUBJECT GUIDE TO BOOKS IN PRINT: AN INDEX TO PUBLISHER'S TRADE LIST. R. R. Bowker, 1957.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.