Dyfyniad APA

Spellman, F. R., & Whiting, N. E. (2014). Handbook of mathematics and statistics for the environment. CRC press.

Dyfyniad Arddull Chicago

Spellman, Frank R., and Nancy E. Whiting. Handbook of Mathematics and Statistics for the Environment. Boca Raton: CRC press, 2014.

Dyfyniad MLA

Spellman, Frank R., and Nancy E. Whiting. Handbook of Mathematics and Statistics for the Environment. CRC press, 2014.

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