@book{Frayne2008RIME1, author = {Frayne, Douglas R.}, number = {1}, series = {Royal {Inscriptions} of {Mesopotamia} {Early} {Periods}}, year = {2008}, publisher = {University of Toronto Press}, } @article{Pittman1998UrTreasures, author = {Pittman, Holly}, journal = {Treasures from Royal Tombs of Ur}, editor = {Zettler, Richard L.}, year = {1998}, pages = {pp. 75--84}, publisher = {University of Pennsylvania Museum}, title = {Cylinder {Seals}}, } @book{Wiseman1962WAS1, author = {Wiseman, Donald J.}, number = {1}, series = {Catalogue of the {Western} {Asiatic} seals in the {British} {Museum}}, year = {1962}, title = {Uruk-{Early} {Dynastic} {Periods}}, } @book{Woolley1934UE2, author = {Woolley, C. Leonard}, number = {vol. 2}, series = {Ur {Excavations}}, year = {1934}, title = {The {Royal} {Cemetery}: a {Report} on the {Predynastic} and {Sargonic} graves excavated between 1926 and 1931}, }