00436pam a2200145 i 4500020001500000020002200015082001900037100002500056245006700081260004400148300002500192490003300217500002000250650002000270 a0716710560 a0716710579 (pbk.)00a574.873282 GRO1 aGrobstein, Clifford,12aA double image of the double helix :the recombinant-DNA debate aSan Francisco :bW. H. Freeman,cc1979. axi, 177 p. :bill. ;0 aA Series of books in biology aIncludes index. 0aRecombinant DNA