Conheim, M. (1981). Charting the past [microform]: Philadelphia helped map a nation's course.
Chicago Style CitationConheim, Maryanne. Charting the Past [microform]: Philadelphia Helped Map a Nation's Course. 1981.
MLA CitationConheim, Maryanne. Charting the Past [microform]: Philadelphia Helped Map a Nation's Course. 1981.
Warning: These citations may not always be 100% accurate.