PORTER RUTH [red.] 542,149 PHOTOPERIODIC Photoperiodic regulation of insect and molluscan hormones : Symposium on [...] held at the Ciba Founadtion, London, 12—14 July 1983 / ed. Ruth Porter and Geralyn M. Collins]. — London : Pitman, 1984. — VIII, 298 s. : wykr.; 24 cm (Ciba Foundation Symposium ; 104) ISBN 0 272 7951 0