Cuneiform was the written system of the Sumerians. It is one of the first forms of writing, and consists of symbols.
R. Pintelon has written: 'System identification' -- subject(s): System identification
A. Guyot Cameron has written: 'The Torrens system' -- subject(s): Torrens system
Bell. has written: 'An apprenticeship system'
Enos Blakeslee has written: 'A system of astronomy' -- subject(s): Solar system, Astronomy
Carl Candullo has written: 'System development standards' -- subject(s): System design
Avraham Feintuch has written: 'System theory' -- subject(s): System analysis, Hilbert space
A. Burger has written: 'Drugs affecting the peripheral nervous system' 'Drugs affecting the central nervous system'
M. Danloux-Dumesnils has written: 'The metric system' -- subject(s): Metric system
Toshifumi Kumai has written: 'Another view of the brain system' -- subject(s): Brain, Nervous system, Physiology, Nervous System Physiology
Paul J. Asente has written: 'X Window system toolkit' -- subject(s): X Window System (Computer system)
The Incas didn't have a written script but used a complicated system of knotted cords called, 'Quipu' for communicating.
Jean Pierre Morat has written: 'Physiology of the nervous system' -- subject(s): Nervous system