00592nam a22002297a 4500003000500000005001700005008004100022010000900063011000900072035000900081040000900090082002100099100002300120245002700143250001400170260007900184300002900263490001600292650001800308700002000326830001600346CHAP20220329133358.0971013s1989            r     00010     d  a5685  a6657  a5878  cCHAP  a631.34bA53 198900aAldrich, Robert A.  aGreenhouse engineering  a2ed. rev.  aIthaca, N.Y. :bNortheast Regional Agricultural Engineering Service,c1989  a97p.b: ilus. ; gráfs.  aNRAESv; 3314aInvernaderos.0 aBartok, John W.0 aNRAESv; 33