Dyfyniad APA

Elsner, P. (2005). Cosmeceuticals and active cosmetics: Drug versus cosmetics. Boca Raton: Taylor & Francis.

Dyfyniad Arddull Chicago

Elsner, Peter. Cosmeceuticals and Active Cosmetics: Drug Versus Cosmetics. Boca Raton: Taylor & Francis, 2005.

Dyfyniad MLA

Elsner, Peter. Cosmeceuticals and Active Cosmetics: Drug Versus Cosmetics. Boca Raton: Taylor & Francis, 2005.

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