[1]
A. J. Boucot, C. W. Pitrat, J. G. Johnson, and R. D. Staton, “Part H, Brachiopoda, vol. 1 & 2, ch. 6, p. 632-728”,
InvertebratePaleo
, Jan. 1965, doi:
10.17161/dt.v0i0.5548
.