Photoperiodic regulation of insect and molluscan hormones / Ruth Porter and Geralyn M. Collins (editors). - London : Pitman Pub., 1984. - viii, 298 p. : ill. ; 24 cm. - Ciba Foundation symposium ; 104. . Includes bibliographies and index. ISBN: 0272797510 Subjects--Topical Terms: Photoperiodism.Insects--Physiology.Mollusks--Physiology.Arachnida--Physiology.