APA (7th ed.) Citation

Knight, N. F. (2006). User-defined material model for progressive failure analysis. National Aeronautics and Space Administration, Langley Research Center.

Chicago Style (17th ed.) Citation

Knight, Norman F. User-defined Material Model for Progressive Failure Analysis. Hampton, Va.: National Aeronautics and Space Administration, Langley Research Center, 2006.

MLA (9th ed.) Citation

Knight, Norman F. User-defined Material Model for Progressive Failure Analysis. National Aeronautics and Space Administration, Langley Research Center, 2006.