- Special Collections Research Center at NCSU Libraries
- North Carolina State University, College of Agriculture and Life Sciences, Department of Communication Services Records (UA100.099) held by Special Collections Research Center at NCSU Libraries
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Building: North Carolina State University, Wallace Carl Riddick Engineering Laboratories -- Riddick Hall (Raleigh, Wake County, North Carolina)
- Northup & O'Brien (Winston-Salem, N.C.) more info on Northup & O'Brien (Winston-Salem, N.C.)
- NC State University