Cita APA (7th ed.)
Clark, J. E., & Nelson, F. W. (1988). The lithic artifacts of La Libertad, Chiapas, Mexico: An economic perspective. New World Archaeological Foundation ; Brigham Young University.
Cita Chicago (17th ed.)
Clark, John E., i Fred W. Nelson. The Lithic Artifacts of La Libertad, Chiapas, Mexico: An Economic Perspective. Provo, Utah: New World Archaeological Foundation ; Brigham Young University, 1988.
Cita MLA (9th ed.)
Clark, John E., i Fred W. Nelson. The Lithic Artifacts of La Libertad, Chiapas, Mexico: An Economic Perspective. New World Archaeological Foundation ; Brigham Young University, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.