Calificación: 0 de 5 estrellas
0 calificaciones
Cargando
JD![]()
author
James E. Duffy
Mr. Duffy is a graduate of Indiana State University with degrees in Technology Education and Electronics Technology. He has written several very successful textbooks, workbooks, and video scripts a...ver másMr. Duffy is a graduate of Indiana State University with degrees in Technology Education and Electronics Technology. He has written several very successful textbooks, workbooks, and video scripts adopted and used in public schools across the U.S. He is a father of three and a grandfather to five beautiful grandchildren.ver menos