TY - BOOK AU - Watterson,Ray L. AU - Robert M.Sweeney TI - Laboratory studies of chick, pig, and frog embryos SN - 80872326x AV - QL957 .W353 1973 PY - 1973/// CY - Minneapolis, Minn. PB - Burgess Pub. Co. KW - Embryology KW - Laboratory manuals KW - Vertebrates KW - Chickens KW - Embryos KW - Anura KW - Swine N1 - Includes index ER -