The Online Books Page

Books by R. W. Steffens:

Books in the extended shelves:

• Steffens, R. W.: Nondestructive testing of isotope containment capsules : Phase I SNAP-21 and SNAP-23 (Richland, Washington : Pacific Northwest Laboratory, 1968., 1968), also by F. M. Coffman, H. N. Pedersen, U.S. Atomic Energy Commission, and Pacific Northwest Laboratory (page images at HathiTrust)
• Steffens, R. W.: Nondestructive testing of isotope containment capsules : remote ultrasonic test station UT-40 (Richland, Washington : Pacific Northwest Laboratory, 1968., 1968), also by F. M. Coffman, U.S. Atomic Energy Commission, and Pacific Northwest Laboratory (page images at HathiTrust)
• Steffens, R. W.: Nondestructive testing of isotope containment capsules : SNAP-15A (Richland, Washington : Nondestructive Testing Section, Applied Physics and Electronics Department, Pacific Northwest Laboratory, 1968., 1968), also by F. M. Coffman, U.S. Atomic Energy Commission, and Pacific Northwest Laboratory (page images at HathiTrust)
• Steffens, R. W.: Nondestructive testing of isotope heat sources : interim report (Battelle-Northwest ;, 1965), also by George F. Garlick, D. R. Green, U.S. Atomic Energy Commission, Pacific Northwest Laboratory, and Battelle Memorial Institute (page images at HathiTrust)

Find more by R. W. Steffens at your library, or elsewhere.