IRScNB_P4087_3798877-220_30_Bulletin 7.pdf
Bulletin of the Royal Belgian Institute of Natural Sciences 1949-1971 / 30 - 1954 Essig, E.O. & Leclercq, J. 1954.
Pucerons (Homoptera-Aphidoidea) des environs de Liège (Belgique).
irscnb_p4087_3798877-220_30_bulletin-7.pdf — PDF document, 375 KB (384913 bytes)