Studies on pine sawflies (Hymenoptera: Diprionidae)

by Leksawasdi, P., International Union of Forestry Research Organizations, Vienna (Austria) eng, IUFRO Workshop on Pests and Diseases of Forest Plantations eng 5-11 Jun 1988 Bangkok (Thailand), Moolsadag, S., Laonetr, P. (Chiang Mai Univ. (Thailand). Biology Dept.), Chaweewan Hutacharern (ed.), MacDicken, K.G. (ed.), Ivory, M.H. (ed.), Nair, K.S.S. (ed.), Royal Forest Dept., Bangkok (Thailand) eng, FAO, Bangkok (Thailand). Regional Office for Asia and the Pacific eng
Published 1990