APA (7th ed.) Citation
(1984). The code system SSYST, present status and current development. NEA Data Bank.
Chicago Style (17th ed.) Citation
The Code System SSYST, Present Status and Current Development. Gif-sur-Yvette: NEA Data Bank, 1984.
MLA (9th ed.) Citation
The Code System SSYST, Present Status and Current Development. NEA Data Bank, 1984.
Warning: These citations may not always be 100% accurate.