Orlov, D. S. Soil chemistry - Rotterdam : Balkema, 1992 - 390 p. : ilus. - Russian translations series ; 92 . - Russian translations series ; 92 . LCCN: 38997 Subjects--Topical Terms: Suelos--Composición.Suelos--QuĆmica de. Dewey Class. No.: 631.41 / O72