Dyfyniad APA

Woodget, B. W., & Cooper, D. (1991). Samples and standards: :analytical chemistry by open learning. John Wiley.

Dyfyniad Arddull Chicago

Woodget, Brian W., and Derek Cooper. Samples and Standards: :analytical Chemistry by Open Learning. Singapore: John Wiley, 1991.

Dyfyniad MLA

Woodget, Brian W., and Derek Cooper. Samples and Standards: :analytical Chemistry by Open Learning. John Wiley, 1991.

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