Г21    S83         Steric effects in conjugated systems : proc. of a symp. held at the univ., Hull, 15-17 July, 1958 by the chem. soc. / ed. G. W. Gray. - London : Butterworths, 1958. - VIII, 181 p. : ill. - Bibliogr. at the end of the art. - 1.68 р.ББК: Г213.4 Экземпляры: аб. (1)