Horn, Sally P. (1985): Preliminary pollen analysis of Quaternary sediments from Deep Sea Drilling Project Site 565, western Costa Rica. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, In: von Huene, Roland, Aubouin, Jean, Arnott, Robert J., Baltuck, Miriam, Bourgois, Jacques, Helm, Roger, Ogawa, Yujiro, Kvenvolden, Keith A., McDonald, Thomas J., Taylor, Elliott, McDougall, Kristin, Filewicz, Mark V., Winsborough, Barbara, Lienert, Barry, Orlofsky, Susan (editor), Initial reports of the Deep Sea Drilling Project covering Leg 84 of the cruises of the Drilling Vessel Glomar Challenger; Balboa, Panama, to Manzanillo, Mexico, January-February 1982, 84, 533-547, georefid:1985-069870