IRScNB_P4087_RBINS17593_44_Bulletin 1.pdf
Bulletin of the Royal Belgian Institute of Natural Sciences 1949-1971 / 44 - 1968 Demoulin, G. 1968.
A propos du genre Stackelbergisca Tshernova et des formes affines (Ephemeroptera, Siphlonuridae).
irscnb_p4087_rbins17593_44_bulletin-1.pdf — PDF document, 729 KB (747083 bytes)