The Iron and machinery world. [s.n.
Chicago Style (17th ed.) CitationThe Iron and Machinery World. Chicago, Ill.: [s.n.
MLA引文The Iron and Machinery World. [s.n.
警告：這些引文格式不一定是100％准確.
APA引文
The Iron and machinery world. [s.n.
Chicago Style (17th ed.) CitationThe Iron and Machinery World. Chicago, Ill.: [s.n.
MLA引文The Iron and Machinery World. [s.n.