Cita APA (7a ed.)

American Society for Testing and Materials. (2004). Standard practice for determining the normalized penetration resistance of sands for evaluation of liquefaction potential. ASTM.

Cita Chicago Style (17a ed.)

American Society for Testing and Materials. Standard Practice for Determining the Normalized Penetration Resistance of Sands for Evaluation of Liquefaction Potential. Philadelphia: ASTM, 2004.

Cita MLA (9a ed.)

American Society for Testing and Materials. Standard Practice for Determining the Normalized Penetration Resistance of Sands for Evaluation of Liquefaction Potential. ASTM, 2004.