DeBoer, W. R. (1996). Traces behind the Esmeraldas shore: Prehistory of the Santiago-Cayapas Region, Ecuador. University of Alabama Press.
Cita Chicago (17th ed.)DeBoer, Warren R. Traces Behind the Esmeraldas Shore: Prehistory of the Santiago-Cayapas Region, Ecuador. Tuscaloosa, Ala.: University of Alabama Press, 1996.
Cita MLA (9th ed.)DeBoer, Warren R. Traces Behind the Esmeraldas Shore: Prehistory of the Santiago-Cayapas Region, Ecuador. University of Alabama Press, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.