Cita APA (7th ed.)

Gentry, D. W., & O'Neil, T. J. (1984). Mine investment analysis. N.Y. Society of Mining Engineers of American Institute of Mining, Metallurgical, and Petroleum Engineers, Inc.

Cita Chicago (17th ed.)

Gentry, Donald W., i Thomas J. O'Neil. Mine Investment Analysis. New York: N.Y. Society of Mining Engineers of American Institute of Mining, Metallurgical, and Petroleum Engineers, Inc, 1984.

Cita MLA (9th ed.)

Gentry, Donald W., i Thomas J. O'Neil. Mine Investment Analysis. N.Y. Society of Mining Engineers of American Institute of Mining, Metallurgical, and Petroleum Engineers, Inc, 1984.