Fanale, F. P., & Kulp, J. L. (1962). The helium method and the age of the cornwall, Pennsylvania magnetite ore.
Cita Chicago Style (17a ed.)Fanale, F. P., y J. Laurence Kulp. The Helium Method and the Age of the Cornwall, Pennsylvania Magnetite Ore. 1962.
Cita MLA (8a ed.)Fanale, F. P., y J. Laurence Kulp. The Helium Method and the Age of the Cornwall, Pennsylvania Magnetite Ore. 1962.
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