(1971). Communications technology for urban improvement: Report to the Department of Housing and Urban Development : Contract No. H-1221. Washington, D.C: National Academy of Engineering.
Παραπομπή Chicago StyleCommunications Technology for Urban Improvement: Report to the Department of Housing and Urban Development : Contract No. H-1221. Washington, D.C: National Academy of Engineering, 1971.
Παραπομπή MLACommunications Technology for Urban Improvement: Report to the Department of Housing and Urban Development : Contract No. H-1221. Washington, D.C: National Academy of Engineering, 1971.
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