Cita APA

33 metal producing. [Cleveland, Ohio, etc.]: [Penton Pub., etc.].

Chicago Style Citation

33 Metal Producing. [Cleveland, Ohio, etc.]: [Penton Pub., etc.].

Cita MLA

33 Metal Producing. [Cleveland, Ohio, etc.]: [Penton Pub., etc.].

Atenció: Aquestes cites poden no estar 100% correctes.