Dyfyniad APA

Chelius, J. M., South, J. F., & Norris, G. W. (1847). A system of surgery. Lea & Blanchard.

Dyfyniad Arddull Chicago

Chelius, J. M., John Flint South, and George W. Norris. A System of Surgery. Philadelphia: Lea & Blanchard, 1847.

Dyfyniad MLA

Chelius, J. M., et al. A System of Surgery. Lea & Blanchard, 1847.

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