Não informado. (1957). SUBJECT GUIDE TO BOOKS IN PRINT: AN INDEX TO PUBLISHER'S TRADE LIST. R. R. Bowker.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. SUBJECT GUIDE TO BOOKS IN PRINT: AN INDEX TO PUBLISHER'S TRADE LIST. New York: R. R. Bowker, 1957.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. SUBJECT GUIDE TO BOOKS IN PRINT: AN INDEX TO PUBLISHER'S TRADE LIST. R. R. Bowker, 1957.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.