APA (7th ed.) Citation

Siewert, T. A., & Schmieder, A. K. (1995). Pendulum impact machines: Procedures and specimens for verification. ASTM.

Chicago Style (17th ed.) Citation

Siewert, T. A., and A. Karl Schmieder. Pendulum Impact Machines: Procedures and Specimens for Verification. Philadelphia, PA: ASTM, 1995.

MLA (9th ed.) Citation

Siewert, T. A., and A. Karl Schmieder. Pendulum Impact Machines: Procedures and Specimens for Verification. ASTM, 1995.

Warning: These citations may not always be 100% accurate.