from Marlton, NJ
Congresswoman Johnson speaks to Dr. Margaret Zeigler of the Congressio...
Global Harvest Initiative announces Dr. Margaret Zeigler as the new Ex...
The Global Harvest Initiative tracks global progress on agricultural p...
... of Des Moines and the airport yesterday but we're lucky because Ma...
Margaret Ziegler the executive director of the global harvest initiati...
ASABE Annual International Meeting 2015 keynote speaker Dr. Margaret M...