Dwyer, John N. Summer gold; : a camper's guide to amateur prospecting [electronic resource] / [by] John N. Dwyer.. — New York, : Scribner, [1974, c1971]. — 72 p. : illus. 24 cm.
Reprint of the ed. published by North Star Press, St. Cloud, Minn., in series: A Polaris paperbook.
Bibliography: p. [68]-72.
0684137062 0684137194 (pbk.)
73019267
Gold mines and mining--United States. Prospecting.