Dyfyniad APA

Preston, E. B. (1895). California gold mill practices. A.J. Johnston, superintendent state printing.

Dyfyniad Arddull Chicago

Preston, Edmund B. California Gold Mill Practices. Sacramento,: A.J. Johnston, superintendent state printing, 1895.

Dyfyniad MLA

Preston, Edmund B. California Gold Mill Practices. A.J. Johnston, superintendent state printing, 1895.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.