Não informado. Data book electronic information series. Derivation and Tabulation Associates.
Chicago-Zitierstil (17. Ausg.)Não informado. Data Book Electronic Information Series. San Diego, Calif: Derivation and Tabulation Associates.
MLA-Zitierstil (8. Ausg.)Não informado. Data Book Electronic Information Series. Derivation and Tabulation Associates.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.