Bell, F. G. (2007). Basic environmental and engineering geology. Caithness, Scotland : Boca Raton, FL: Whittles Publishing ; distributed in North America by CRC Press.
استشهاد بنمط شيكاغوBell, F. G. Basic Environmental and Engineering Geology. Caithness, Scotland : Boca Raton, FL: Whittles Publishing ; distributed in North America by CRC Press, 2007.
MLA استشهادBell, F. G. Basic Environmental and Engineering Geology. Caithness, Scotland : Boca Raton, FL: Whittles Publishing ; distributed in North America by CRC Press, 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.