P. Horn, S. (1989). Prehistoric fires in the Chirripó highlands of Costa Rica: Sedimentary charcoal evidence. Universidad de Costa Rica.
Chicago Style CitationP. Horn, Sally. Prehistoric Fires in the Chirripó Highlands of Costa Rica: Sedimentary Charcoal Evidence. Universidad de Costa Rica, 1989.
MLA CitationP. Horn, Sally. Prehistoric Fires in the Chirripó Highlands of Costa Rica: Sedimentary Charcoal Evidence. Universidad de Costa Rica, 1989.
Warning: These citations may not always be 100% accurate.