Barron, J.A., E.H. Harper, G. Keller, R.A. Reynolds, T. Sakai, B.L. Shaffer, and R.P. Thompson. 1980. Biostratigraphic Summary. Initial Reports of the Deep Sea Drilling Project, 56 57. U.S. Government Printing Office. doi:10.2973/dsdp.proc.5657.1980.
B.L. Shaffer
First name
B.L.
Last name
Shaffer