By Andrews, R. C., Berkey, C. P., Grabau, A. W., Nichols, J. T., Pope, C. H., Allen, G. M. et al.
SKU# 18566
By Le Gros Clark, W.E., Wollard, H. H., Beattie, J. and Elliot-Smith, G., et al.
SKU# 15647
By Final Technical Report, P.L. 480 Project No. A7-CR-101 (FG-in-235)
SKU# 18907
By Final Technical Report, P.L. 480 Project No. A7-CR-101 (FG-in-235)
SKU# 18906
By American Philosophical Society
SKU# 19259
By Dunn, L. C. (editor)
SKU# 16496
By Le, Xuan and Chassain, J. C.
SKU# 17381
By Reid, C. Lestock
SKU# 19096
By Michael, Richard P. and Crook, John H. (editors)
SKU# 18557
By Parker, William S. and Brown, William S.
SKU# 14631
By Woods, Charles A.
SKU# 15114
By Erwin, J., Mitchell, G., Swindler, D., Stekis, H. and Dukelow, W. R. (editors)
SKU# 16154
By Kuhner, R. and Romagnesi, H.
SKU# 18717