Mr. Parker, Cherry Bomb Bomb and the Silver SticksKaren Power, William Duffy · First published 2011Open the Tome
Farm managementRonald D. Kay, Ronald Kay, William M. Edwards, Patricia A Duffy · First published 1981Open the Tome
An analysis of the effect of a flight director on pilot performance in a helicopter hovering taskTimothy William Duffy · First published 1976Open the Tome
A survey of boxing laws of the forty-eight states as applied to high schoolsWilliam Francis Duffy · First published 1947Open the Tome
