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Author

John B Ullmen

3 books found

Cover of No mates a tu jefe!

No mates a tu jefe!

Samuel A. Culbert, John B. Ullmen · First published 2002

Cover of Don't kill the bosses

Don't kill the bosses

Samuel A. Culbert, John B Ullmen · First published 2001

Placeholder cover for Military program managers and the "dual-roles dilemma"

Military program managers and the "dual-roles dilemma"

John B. Ullmen · First published 1990