00751cas a22002177ar450000500170000000800410001701000100005801100100006803500100007824500980008826000900018630000070027631000140028336200200029750000550031765000570037278500250042986600200045486600240047486600350049820220329142057.0990528d1969    us sr peraa   0 aub0eng d  a78051  a79023  a8914604aB.A.S.I.C.bBiological Abstractsc/by BioSciences Information Service of Biological Abstracts0 aPhiladelphia, PA. :bBioSciences Information Service of Biological Abstracts,c1921?-  av.  aQuincenal1 av.50 n.24, 1969  aSe dejo de recibir a partir del v.50 n.24 de 1969.14aBiologíaxResúmenesxPublicaciones periódicas.04tBiological Abstracts  av.43 n.6 (1963)  av.44 n.3,5-6 (1963)  av.45 n.1-v.50 n.24 (1964-1969)