World phosphates supply to the year 2000

Библиографические подробности
Главный автор:	Brown, Martin
Формат:	‌
Язык:	English
Опубликовано:	Paris OECD 1988.
Серии:	Development Centre studies.
Предметы:	Phosphates > Economic aspects > Mathematical models. Phosphate industry > Developing countries. Phosphatic fertilizer industry > Developing countries.