Leffingwell, W. B. (1895). The art of wing shooting: A practical treatise on the use of the shot-gun. Rand, McNally & company.
Citace podle Chicago (17th ed.)Leffingwell, William Bruce. The Art of Wing Shooting: A Practical Treatise on the Use of the Shot-gun. Chicago, New York: Rand, McNally & company, 1895.
Citace podle MLA (8th ed.)Leffingwell, William Bruce. The Art of Wing Shooting: A Practical Treatise on the Use of the Shot-gun. Rand, McNally & company, 1895.
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