Costa Rica excursion 2004 : report of a student excursion to Costa Rica, february 28-march 21, 2004 - Hülsebusch, Christian (University of Hohenheim, 2004)
"Organised by Centre For Agriculture in the Tropics and Subtropics. Institute for Plant Breeding, Seed Science and Population genetics. Seeds and Grains Research Centre, Universidad de Costa Rica"--Responsabilidad tomada de la contraportada