APA (7th ed.) Citation

Otten, R. D. (1982). A comfortability level scale for performance of cardiopulmonary resuscitation (CPR). [publisher not identified].

Chicago Style (17th ed.) Citation

Otten, Robert Drew. A Comfortability Level Scale for Performance of Cardiopulmonary Resuscitation (CPR). [Place of publication not identified]: [publisher not identified], 1982.

MLA (9th ed.) Citation

Otten, Robert Drew. A Comfortability Level Scale for Performance of Cardiopulmonary Resuscitation (CPR). [publisher not identified], 1982.