00438nam a22001457a 4500008004100000040005500041080001600096245004200112260003900154300001600193500001100209650002400220653001800244700003000262230529b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  a612.015(05)  aCurrent topics in cellular regulation  aNew York: bAcademic Press, c1971  axiii, 268p.  aVol. 4  aCellular regulation  aLac repressor  aHorecker, Bernard L (Ed.)