APA Citation

Steensberg, A. (1989). Hard grains, irrigation, numerals and script in the rise of civilizations. Copenhagen: Royal Danish Academy of Sciences and Letters' Commission for Research on the History of Agricultural Implements and Field Structures.

Chicago Style Citation

Steensberg, Axel. Hard Grains, Irrigation, Numerals and Script in the Rise of Civilizations. Copenhagen: Royal Danish Academy of Sciences and Letters' Commission for Research on the History of Agricultural Implements and Field Structures, 1989.

MLA Citation

Steensberg, Axel. Hard Grains, Irrigation, Numerals and Script in the Rise of Civilizations. Copenhagen: Royal Danish Academy of Sciences and Letters' Commission for Research on the History of Agricultural Implements and Field Structures, 1989.