APA

Friedman S. A., Steinheber F. V. & Lass A. H. (1980). The doctor's guide to growing older. New York: New American Library (NAL).

Chicago

Friedman Sandor A, Steinheber Francis V and Lass Abrhm H. 1980. The doctor's guide to growing older. New York: New American Library (NAL).

Harvard

Friedman S. A., Steinheber F. V. and Lass A. H. (1980). The doctor's guide to growing older. New York: New American Library (NAL).

MLA

Friedman Sandor A, Steinheber Francis V and Lass Abrhm H. The doctor's guide to growing older. New York: New American Library (NAL). 1980.