APA-Zitierstil (7. Ausg.)

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.