Dyfyniad APA

229495 Sowers, G. B., & Sowers, G. F. (1970). Introductory soil mechanics and foundations. New York : Macmillan.

Dyfyniad Arddull Chicago

229495 Sowers, George B., and George F. Sowers. Introductory Soil Mechanics and Foundations. New York : Macmillan, 1970.

Dyfyniad MLA

229495 Sowers, George B., and George F. Sowers. Introductory Soil Mechanics and Foundations. New York : Macmillan, 1970.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.