A report on the seminar and study tour on the protection against forest diseases and insects held in U.S.S.R

Vivekanadan, K.2014-12-162014-12-161965The Ceylon Forester, 7(1-2)(New Series):p.39-53https://dl.nsf.gov.lk/handle/1/16442ForestryPlant diseasesA report on the seminar and study tour on the protection against forest diseases and insects held in U.S.S.R