The Soviet pharmaceutical business during the first two decades (1917-1937)Mary Schaeffer Conroy · First published 2006Open the Tome
Essentials of Credit, Collections, and Accounts ReceivableMary S. Schaeffer · First published 2002Open the Tome
The 1999 Managing Credit, Receivables & Collections YearbookMary Schaeffer · First published 1999Open the Tome