APA (7th ed.) Citation

Berry, D. L. (1983). The retention of cardiopulmonary resuscitation skills. [publisher not identified].

Chicago Style (17th ed.) Citation

Berry, Debra Lynn. The Retention of Cardiopulmonary Resuscitation Skills. [Place of publication not identified]: [publisher not identified], 1983.

MLA (9th ed.) Citation

Berry, Debra Lynn. The Retention of Cardiopulmonary Resuscitation Skills. [publisher not identified], 1983.