Allis, E. P. (1931). Concerning the Mouth Opening and certain features of the Visceral Endoskeleton of Cephalaspis.
Chicago Style CitationAllis, Edward Phelps. Concerning the Mouth Opening and Certain Features of the Visceral Endoskeleton of Cephalaspis. 1931.
MLA CitationAllis, Edward Phelps. Concerning the Mouth Opening and Certain Features of the Visceral Endoskeleton of Cephalaspis. 1931.
Warning: These citations may not always be 100% accurate.