Secrets of closing salesCharles B. Roth, Roy Alexander · First published 1940 · Latest edition 1997Open the Tome
Secrets of closing salesAlexander, Roy, Roy Alexander, Charles B. Roth · First published 1965Open the Tome
How to find and qualify prospects and get interviewsCharles B. Roth · First published 1954Open the Tome
How to use your imagination to make moneyJames Davis Woolf, Charles B. Roth · First published 1948Open the Tome