APA (7th ed.) Citation

(1989). Dietz-Geschichtskalender 1990 (o.A.). Dietz.

Chicago Style (17th ed.) Citation

Dietz-Geschichtskalender 1990. o.A. Berlin: Dietz, 1989.

MLA (8th ed.) Citation

Dietz-Geschichtskalender 1990. o.A. Dietz, 1989.

Warning: These citations may not always be 100% accurate.