Lawrence Roys

Lowry ruin in southwestern Colorado

G. Bonin, P. S. Martin, Lawrence Roys, 1936 .

Maya Hieroglyphic Writing: Introduction. J. Eric S. Thompson

Lawrence Roys, 1951 .

The Archaeology of the Cave of the Owls in the Upper Montana of Peru

D. Lathrap, Lawrence Roys, 1963, American Antiquity.