Proposal for a lunar tunnel-boring machine
By: by Christopher S. Allen ... [et al.].
Contributors: Allen, Christopher S.; United States. National Aeronautics and Space Administration.
Series: NASA-CR -- 184746.; NASA contractor report -- NASA CR-184746.
Publisher: National Aeronautics and Space Administration
Published: 1989
Place of publication: [Washington, DC]
Language: eng
Format: Microform
Subjects: Low temperature engineering.; Structural engineering -- United States.
Notes: Distributed to depository libraries in microfiche.

Microfiche. [Washington, D.C.? : National Aeronautics and Space Administration], 1989. 1 microfiche.