Dyfyniad APA

McNeece, C. A., & DiNitto, D. M. (1994). Chemical dependency: A systems approach. Prentice-Hall.

Dyfyniad Arddull Chicago

McNeece, C. Aaron, and Diana M. DiNitto. Chemical Dependency: A Systems Approach. Englewood Cliffs, New Jersey: Prentice-Hall, 1994.

Dyfyniad MLA

McNeece, C. Aaron, and Diana M. DiNitto. Chemical Dependency: A Systems Approach. Prentice-Hall, 1994.

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