APA
American Heart Association, . (1980). American heart association heartbook. New York: E.P. Dutton.
Chicago
American Heart Association, . 1980. American heart association heartbook. New York: E.P. Dutton.
Harvard
American Heart Association, . (1980). American heart association heartbook. New York: E.P. Dutton.
MLA
American Heart Association, . American heart association heartbook. New York: E.P. Dutton. 1980.
