https://geoscan.nrcan.gc.ca/starweb/geoscan/servlet.starweb?path=geoscan/fullf.web&search1=R=215246
Rechercher Fensome, R A; Rechercher Taylor, F J R; Rechercher Norris, G; Rechercher Sarjeant, W A S; Rechercher Wharton, D I; Rechercher Williams, G L
American Museum of Natural History
Périodique (revue)