Henry Wilcots to David Wisdom, letter of 8 June 1967
"Henry Wilcots to David Wisdom, letter of 8 June 1967." In PAC – Correspondence to/from Gus, Hune 1967 thru Dec 1967, 117. University of Pennsylvania and Pennsylvania Historical and Museum Commission, Louis I. Kahn Collection, Box LIK 117. Philadelphia (USA), 1967.