Ciriacks, Kenneth W.
Permian and eotriassic bivalves of yhe middle rockies / Kenneth W. Ciriacks. -- New York : [s.n.], 1963 - 100, [33] p. de lám. (Bulletin of the American Museum of Natural History ; 125,1).
Moluscos
594
Permian and eotriassic bivalves of yhe middle rockies / Kenneth W. Ciriacks. -- New York : [s.n.], 1963 - 100, [33] p. de lám. (Bulletin of the American Museum of Natural History ; 125,1).
Moluscos
594