Dyfyniad APA

Spencer, A. J. M. e. a. (1977). Engineering mathematics. Van Nostrand.

Dyfyniad Arddull Chicago

Spencer, A J M et al.. Engineering Mathematics. New York: Van Nostrand, 1977.

Dyfyniad MLA

Spencer, A J M et al.. Engineering Mathematics. Van Nostrand, 1977.

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