Free Library of Philadelphia & Looney, R. F. (1976). Philadelphia printmaking: American prints before 1860 : a conference, held April 5, 6, 7, 1973 : the Free Library of Philadelphia, the Historical Society of Pennsylvania, the Library Company of Philadelphia, Philadelphia Museum of Art. Tinicum Press.
Chicago Style (17th ed.) CitationFree Library of Philadelphia and Robert F. Looney. Philadelphia Printmaking: American Prints Before 1860 : A Conference, Held April 5, 6, 7, 1973 : The Free Library of Philadelphia, the Historical Society of Pennsylvania, the Library Company of Philadelphia, Philadelphia Museum of Art. West Chester, Pa.: Tinicum Press, 1976.
MLA (9th ed.) CitationFree Library of Philadelphia and Robert F. Looney. Philadelphia Printmaking: American Prints Before 1860 : A Conference, Held April 5, 6, 7, 1973 : The Free Library of Philadelphia, the Historical Society of Pennsylvania, the Library Company of Philadelphia, Philadelphia Museum of Art. Tinicum Press, 1976.