TY  - BOOK
AU  - Afanas'ev, J. N.
TI  - The classification problem in Russian soil science
T2  - Russian pedological investigations
VL  - 5
PY  - 1927///
CY  - Leningrad
PB  - Publ. office of the acad.
KW  - Почвы
KW  - Классификация
KW  - nlr_sh1
ER  -