Witzke, W. R., & Stephens, J. R. (1976). Effect of minor reactive metal additions on fracture toughness of iron-12-percent nickel alloy at -196 ̊and 25 ̊C / Walter R. Witzke and Joseph R. Stephens ; Lewis Research Center, Cleveland, Ohio. U.S. National Aeronautics and Space Administration.
Chicago Style (17th ed.) CitationWitzke, Walter R., and Joseph R. Stephens. Effect of Minor Reactive Metal Additions on Fracture Toughness of Iron-12-percent Nickel Alloy at -196 ̊and 25 ̊C / Walter R. Witzke and Joseph R. Stephens ; Lewis Research Center, Cleveland, Ohio. Washington: U.S. National Aeronautics and Space Administration, 1976.
MLA (9th ed.) CitationWitzke, Walter R., and Joseph R. Stephens. Effect of Minor Reactive Metal Additions on Fracture Toughness of Iron-12-percent Nickel Alloy at -196 ̊and 25 ̊C / Walter R. Witzke and Joseph R. Stephens ; Lewis Research Center, Cleveland, Ohio. U.S. National Aeronautics and Space Administration, 1976.