Volobuyev, V. R.
A comparative geographical study of climatic conditions of chernozem formation (contribution to a discussion of chernozem classification) / - 8 p. : ill., diagrs., tabs. ; 21 cm.
Geography
551.5 / VOC
A comparative geographical study of climatic conditions of chernozem formation (contribution to a discussion of chernozem classification) / - 8 p. : ill., diagrs., tabs. ; 21 cm.
Geography
551.5 / VOC