Dyfyniad APA

Crome, I. B., & Aartsen, M. (2015). Substance use and older people. Wiley Blackwell.

Dyfyniad Arddull Chicago

Crome, Ilana B., and Marja Aartsen. Substance Use and Older People. Chichester, England: Wiley Blackwell, 2015.

Dyfyniad MLA

Crome, Ilana B., and Marja Aartsen. Substance Use and Older People. Wiley Blackwell, 2015.

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