TY  - BOOK
AU  - Beljaev, K. D.
ED  - Seminar on modern methods of prospecting and exploration for mineral deposits for experts from the ECA member-countries
TI  - Exploration for phosphate deposits of ring-complexes and their evaluation
PY  - 1976///
CY  - Μ.
KW  - Д452.11-5
KW  - rubbk
N2  - Библиогр.: с. 26-27
ER  -