Frederick, K. T. (1932). Pistol Regulation: Its Principles and History Part III. https://doi.org/10.2307/1135445
Cita Chicago Style (17a ed.)Frederick, Karl T. Pistol Regulation: Its Principles and History Part III. 1932. https://doi.org/10.2307/1135445.
Cita MLA (9a ed.)Frederick, Karl T. Pistol Regulation: Its Principles and History Part III. 1932. https://doi.org/10.2307/1135445.
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