APA (7th ed.) Citation

LaPlaca, P., & Powell, M. (1990). The Agriculture Cycle and the Calendar at Pre-Sargonic Girsu.

Chicago Style (17th ed.) Citation

LaPlaca, P.J, and M.A Powell. The Agriculture Cycle and the Calendar at Pre-Sargonic Girsu. 1990.

MLA (8th ed.) Citation

LaPlaca, P.J, and M.A Powell. The Agriculture Cycle and the Calendar at Pre-Sargonic Girsu. 1990.

Warning: These citations may not always be 100% accurate.