APA
Simpson B. L., . (1948). Development of the metal castings industry. [s.l.]: [s.n.].
Chicago
Simpson B L, . 1948. Development of the metal castings industry. [s.l.]: [s.n.].
Harvard
Simpson B. L., . (1948). Development of the metal castings industry. [s.l.]: [s.n.].
MLA
Simpson B L, . Development of the metal castings industry. [s.l.]: [s.n.]. 1948.