Productivity of agronomical research investment declines sharply since the 1960snhttps://t.co/gwiWUEnIa8 https://t.co/chcxT0yY7i
RT @archaeologyart: Fragment of a Seljuk box with a combination lock, cast and hammered brass, inlaid with silver and copper.
RT @archaeologyart: Fragment of a Seljuk box with a combination lock, cast and hammered brass, inlaid with silver and copper. from Iran, Is…