Neighborhood of Seventy Low Cost Houses: Memorandum #1 regarding formal communications about the progress of the project; there is also a draft of the letter

12/06/1988
Progress of Works, Memorandum
Sender:
Christopher Alexander, Center for Environmental Structure, Berkeley, CA, U.S.A.
Recipient:
Hernan Mesa Mesa, Construyamos, Bogota, Colombia
Medium:
Letter