APA

Schwartz S. I., . (1979). Principles of Surgery. London: McGraw - Hill Book Co.

Chicago

Schwartz Seymour I, . 1979. Principles of Surgery. London: McGraw - Hill Book Co.

Harvard

Schwartz S. I., . (1979). Principles of Surgery. London: McGraw - Hill Book Co.

MLA

Schwartz Seymour I, . Principles of Surgery. London: McGraw - Hill Book Co. 1979.