(1990). Helga Grebing. Hans-Böckler-Stiftung.
Chicago Style (17th ed.) CitationHelga Grebing. Hans-Böckler-Stiftung, 1990.
MLA (8th ed.) CitationHelga Grebing. Hans-Böckler-Stiftung, 1990.
Warning: These citations may not always be 100% accurate.
APA (7th ed.) Citation