APA

Harrison, Isselbacher K. J., . (1994). Harrison's Principles of internal medicine. New York: McGraw - Hill.

Chicago

Harrison, Isselbacher Kurt J, . 1994. Harrison's Principles of internal medicine. New York: McGraw - Hill.

Harvard

Harrison, Isselbacher K. J., . (1994). Harrison's Principles of internal medicine. New York: McGraw - Hill.

MLA

Harrison, Isselbacher Kurt J, . Harrison's Principles of internal medicine. New York: McGraw - Hill. 1994.