Charles A. Keffer has written:
'Nature studies on the farm' -- subject(s): Natural history, Agriculture, Juvenile literature, Outdoor books
Robert Keffer has written: 'Methods in non-ferrous metallurgical analysis' -- subject(s): Metallurgical analysis
Dave Keffer's birth name is David Charles Keffer.
Eugene R. Keffer has written: 'A study of the science methods course for secondary school science teachers' -- subject(s): High school teachers, In-service training, Science teachers
Charles Beauverie has written: 'Charles Beauverie'
Charles Harbutt has written: 'Charles Harbutt'
Charles Gorney has written: '\\'
Charles Descotay has written: '\\'
Bertram Charles has written: 'Bertram Charles' Our dilemma'
Charles Spaak has written: 'Balthasar'
CHARLES MCCORQUODALE has written: 'BRONZINO'
Charles Reeder has written: 'Caloric'
Charles Sweeton has written: 'Fractions'