181,970 COLD Cold Spring Harbor symposia on quantitative biology. New York 1977 Cold Spring Harbor Laboratory 40 Vol.41.Origins of lymphocyte diversity. Part 1.s.XXII,nlb.2,415,nlb.1,22, il. Vo1.41.Origins of lymphocyte diversity. Part 2.s.XII,nlb.2,417-902,22,il.