Barbara Acello (Self-Employed Consultant),Barbara Hegner
(3)
Barbara R. Hegner/ Barbara Acello
(3)
Barbara R. Hegner/ Barbara Acello/ Esther Caldwell
(3)
Barbara Hegner/ Barbara Acello/ Esther Caldwell
(2)
Barbara Hegner/ Barbara Acello
(1)
Barbara Hegner/ Barbara Acello/ Esther Caldwell/ Joan Fritsch Needham
(1)
Barbara R. Hegner/ Barbara Acello/ Esther Caldwell Ph.D.
(1)