IRScNB_P4087_RBINS17630_43_Bulletin 13.pdf
Bulletin of the Royal Belgian Institute of Natural Sciences 1949-1971 / 43 - 1967 Vandercammen, A. & Plodowski, G. 1967.
La question du genre Spirifer s. str., et des genres voisins.
irscnb_p4087_rbins17630_43_bulletin-13.pdf — PDF document, 1.63 MB (1709314 bytes)