Cita APA (7th ed.)
Matthews, W. H. (1960). Texas Fossils: An amateur collector's handbook. University of Texas.
Cita Chicago (17th ed.)
Matthews, William H. Texas Fossils: An Amateur Collector's Handbook. Austin: University of Texas, 1960.
Cita MLA (9th ed.)
Matthews, William H. Texas Fossils: An Amateur Collector's Handbook. University of Texas, 1960.
Atenció: Aquestes cites poden no estar 100% correctes.