Kass, D., Kauffman, J., & Herrera Reyes, C. (1995). Costa Rica: Reference soils of the Turrialba valley and slopes of the Irazú volcano. Soil brief Costa Rica 2.
Style de citation ChicagoKass, D.C.L., J.H Kauffman, et C.G Herrera Reyes. Costa Rica: Reference Soils of the Turrialba Valley and Slopes of the Irazú Volcano. Soil Brief Costa Rica 2. 1995.
Style de citation MLAKass, D.C.L., J.H Kauffman, et C.G Herrera Reyes. Costa Rica: Reference Soils of the Turrialba Valley and Slopes of the Irazú Volcano. Soil Brief Costa Rica 2. 1995.
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