Prakash, S., & Prakash, S. (1981). Soil Dynamics Shamsher Prakash. McGraw-Hill.
Dyfyniad Arddull ChicagoPrakash, Shamsher, and Shamsher Prakash. Soil Dynamics Shamsher Prakash. McGraw-Hill, 1981.
Dyfyniad MLAPrakash, Shamsher, and Shamsher Prakash. Soil Dynamics Shamsher Prakash. McGraw-Hill, 1981.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.