British Standards Institution. (1967). Dimensional tolerances for steel drop and press forgings and for upset forgings made on horizontal forging machines. British Standards Institution.
芝加哥风格引文British Standards Institution. Dimensional Tolerances for Steel Drop and Press Forgings and for Upset Forgings Made on Horizontal Forging Machines. London: British Standards Institution, 1967.
MLA引文British Standards Institution. Dimensional Tolerances for Steel Drop and Press Forgings and for Upset Forgings Made on Horizontal Forging Machines. British Standards Institution, 1967.
警告：这些引文格式不一定是100％准确.