Subselenean tunneler melting head design
Subtitle: a preliminary study, NASA/USRA project
By: by Bill Engblom ... [et al.].
Contributors: Engblom, Bill.; United States. National Aeronautics and Space Administration.
Series: NASA-CR -- 184750.; NASA contractor report -- NASA CR-184750.
Publisher: Texas A&M University, Aerospace Engineering
Published: 1989
Place of publication: College Station, Tex
Language: eng
Format: Microform
Subjects: Tunneling -- Moon.; Lunar bases.
Notes: Distributed to depository libraries in microfiche.

Microfiche. [Washington, D.C.? : National Aeronautics and Space Administration], 1989. 2 microfiches.