Firth Brown Tools Ltd. (1957). The Speedicut manual of screw thread tools. Firth Brown Tools Ltd..
芝加哥风格引文Firth Brown Tools Ltd. The Speedicut Manual of Screw Thread Tools. Sheffield: Firth Brown Tools Ltd., 1957.
MLA引文Firth Brown Tools Ltd. The Speedicut Manual of Screw Thread Tools. Firth Brown Tools Ltd., 1957.
警告：这些引文格式不一定是100％准确.