Hutchings, D. W. (1969). Edison at work: the Thomas A. Edison laboratory: At West Orange, New Jersey. Hastings.
Chicago-viite (17. p.)Hutchings, David W. Edison at Work: The Thomas A. Edison Laboratory: At West Orange, New Jersey. New York: Hastings, 1969.
MLA-viite (9. p.)Hutchings, David W. Edison at Work: The Thomas A. Edison Laboratory: At West Orange, New Jersey. Hastings, 1969.
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