Изготовление электронных копий любых изданий

Towards a second green revolution From chem. to new biol. technologies in agriculture in the tropics : Proc. of the Intern. meeting…held in Rome, Italy, 8-10 Sept. 1986 Organized by the Accad. naz. delle scienze detta dei XL ; Ed. by G.B. Marini Bett?lo