Shifting agriculture and sustainable development 1993 /
Ramakrishnan, Ps
Shifting agriculture and sustainable development 1993 / - Delhi : UNESCO,Paris and Oxford University press , 1993. - Man and the diosphere service ed by JNR Jeffers .
Shifting agriculture and sustainable development 1993 / - Delhi : UNESCO,Paris and Oxford University press , 1993. - Man and the diosphere service ed by JNR Jeffers .