Cita APA (7th ed.)
Matthes, F. E., & Fryxell, F. (1950). The Incomparable Valley: A Geologic Interpretation of the Yosemite. Univ. of California Pr.
Cita Chicago (17th ed.)
Matthes, Francois Emile, i Fritiof Fryxell. The Incomparable Valley: A Geologic Interpretation of the Yosemite. Berkeley, Los Angeles: Univ. of California Pr, 1950.
Cita MLA (9th ed.)
Matthes, Francois Emile, i Fritiof Fryxell. The Incomparable Valley: A Geologic Interpretation of the Yosemite. Univ. of California Pr, 1950.
Atenció: Aquestes cites poden no estar 100% correctes.