Dyfyniad APA

Pennsylvania State College. Dept. of Mining Engineering. (1894). The Mining bulletin. Dept. of Mining Engineering, Pennsylvania State College.

Dyfyniad Arddull Chicago

Pennsylvania State College. Dept. of Mining Engineering. The Mining Bulletin. [State College]: Dept. of Mining Engineering, Pennsylvania State College, 1894.

Dyfyniad MLA

Pennsylvania State College. Dept. of Mining Engineering. The Mining Bulletin. Dept. of Mining Engineering, Pennsylvania State College, 1894.

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