-
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. 1114, 1970
Links:
View citation information
- Membership Files, American Institute of Architects Archives, Washington, DC
- George Johnson Scrapbook, Free Library of Philadelphia.
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