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<xml><bibliography><APA>A. Keene และผู้แต่งคนอื่นๆ. (2014) Mechanical Properties of Polyurethane-Stabilized Ballast. &lt;i&gt;The Geotechnical Engineering Journal of the SEAGS &amp; AGSSEA&lt;/i&gt;, &lt;i&gt;45&lt;/i&gt;(1), pp 67-73.</APA><Chicago>A. Keene และผู้แต่งคนอื่นๆ. "Mechanical Properties of Polyurethane-Stabilized Ballast". The Geotechnical Engineering Journal of the SEAGS &amp; AGSSEA  45 (2014):pp 67-73.</Chicago><MLA>A. Keene และผู้แต่งคนอื่นๆ. Mechanical Properties of Polyurethane-Stabilized Ballast. Southeast Asian Geotechnical Society:ม.ป.ท. 2014.</MLA></bibliography></xml>
