PDF(647 KB)
ECOLOGICAL BALANCE AND GEOGRAPHIC RESEARCH OF AGRICULTURE II THE CONCEPT OF ECOLOGICAL BALANCE AND ECOSYSTEM AND SUCH TERMS AS NATURAL RESOURCES,ENVIRONMENT, PHYSICAL PLANNING ETC.
Huang Pingwei
GEOGRAPHICAL RESEARCH ›› 1982, Vol. 1 ›› Issue (2) : 1-7.
PDF(647 KB)
PDF(647 KB)
ECOLOGICAL BALANCE AND GEOGRAPHIC RESEARCH OF AGRICULTURE II THE CONCEPT OF ECOLOGICAL BALANCE AND ECOSYSTEM AND SUCH TERMS AS NATURAL RESOURCES,ENVIRONMENT, PHYSICAL PLANNING ETC.
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