00503nam a22002057a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093100002000102245003000122260005400152300001800206500001400224650001900238650001800257700002200275CHAP20220329140358.0971013s                r     00010     d  a51128  a52100  a56250  cCHAP00aWalker, John N.  aGreenhouse hating systems  aLexington, Ken :bUniversity of Kentocky,c(197?)  a8 h.b: ilus.  aFotocopia14aCalefacción.14aInvernaderos.0 aDuncan, George A.