Major soil groups of the world
Legros Jean-Paul, Sarma V. A. K.Kniha
Citace v seznamu literatury:
LEGROS, Jean-Paul a SARMA, V. A. K. Major soil groups of the world: ecology, genesis, properties and classification. Boca Raton, Fla.: CRC Press, 2013. ISBN 9781466502437. Dostupné také z: https://proxy.k.utb.cz/login?url=http://marc.crcnetbase.com/isbn/9781466502437.