-
University of Pennsylvania Architectural Alumni Society. The Book of the School. Philadelphia: University of Pennsylvania Press, 1934.,
p. 177
Links:
View citation information
-
AIA/T-Square Yearbook,
1949
Links:
View citation information
Membership: Philadelphia Chapter, AIA,
Corporate Member
-
Koyl, George. American Architects' Directory. New York: R.R. Bowker Co.,
1956
Links:
View citation information
Office: Philadelphia
-
Koyl, George. American Architects' Directory. New York: R.R. Bowker Co.,
1962
Links:
View citation information
Office: Philadelphia
-
Koyl, George. American Architects' Directory. New York: R.R. Bowker Co.,
p. 1118, 1970
Links:
View citation information
- "David Supowitz." Exhibitor 19 (15 March 1937)
- Supowitz, David. "Philadelphia's First Modern Theatre in 20 Years." Interiors 106(November 1946): 110, 144.
- University of Pennsylvania. General Alumni Catalogue. Philadelphia: 1917, p. 388.
- Membership records, American Institute of Architects Archives, Washington, DC
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