Green, N. D. (1939). The steel square: Showing its application to roofing, timber framing and staircasing. George Newnes.
芝加哥风格引文Green, Nöel D. The Steel Square: Showing Its Application to Roofing, Timber Framing and Staircasing. London: George Newnes, 1939.
MLA引文Green, Nöel D. The Steel Square: Showing Its Application to Roofing, Timber Framing and Staircasing. George Newnes, 1939.
警告：这些引文格式不一定是100％准确.