Dyfyniad APA

Ashhurst, J. (1885). The principles and practice of surgery (4th ed., enl. and thoroughly rev.). Lea Brothers.

Dyfyniad Arddull Chicago

Ashhurst, John. The Principles and Practice of Surgery. 4th ed., enl. and thoroughly rev. Philadelphia: Lea Brothers, 1885.

Dyfyniad MLA

Ashhurst, John. The Principles and Practice of Surgery. 4th ed., enl. and thoroughly rev. Lea Brothers, 1885.

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