APA (7th ed.) Citation

Van Alstine, R. E. (1969). Geology and mineral deposits of the Poncha Springs NE quadrangle, Chaffee County, Colorado. U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Van Alstine, Ralph Erskine. Geology and Mineral Deposits of the Poncha Springs NE Quadrangle, Chaffee County, Colorado. Washington: U.S. Govt. Print. Off, 1969.

MLA (9th ed.) Citation

Van Alstine, Ralph Erskine. Geology and Mineral Deposits of the Poncha Springs NE Quadrangle, Chaffee County, Colorado. U.S. Govt. Print. Off, 1969.