In : Schenk NC ( 1982 ) Methods and principles of mycorrhizal research . ... pp 185-194 Pierce SM ( 1992 ) La Selva Biological Station history : colonization / land use / deforestation of Sarapiquí , Costa Rica .

In : Schenk NC ( 1982 ) Methods and principles of mycorrhizal ... Washington , DC , pp 185-194 Pierce SM ( 1992 ) La Selva Biological Station history : colonization / land use / deforestation of Sarapiquí , Costa Rica .