APA Citation

Heyl, A V. (1966). Aeromagnetic and tectonic analysis of the Upper Mississippi Valley zinc lead district. Washington: United States Government Printing Office.

ISBD Citation

Aeromagnetic and tectonic analysis of the Upper Mississippi Valley zinc lead district / by Allen V. Heyl and Elizabeth R. King . — Washington : United States Government Printing Office, 1966. — III, 16 Seiten; 1 Karte. — (Geological Survey bulletin ; 1242, A) (Contributions to economic geology)

MLA Citation

Heyl, Allen V. Aeromagnetic and Tectonic Analysis of the Upper Mississippi Valley Zinc Lead District.Washington: United States Government Printing Office, 1966.

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