Weck, H., Pommerehne, W. W., & Frey, B. S. (1984). Schattenwirtschaft. Vahlen.
Chicago Style (17th ed.) CitationWeck, Hannelore, Werner W. Pommerehne, and Bruno S. Frey. Schattenwirtschaft. München: Vahlen, 1984.
MLA (9th ed.) CitationWeck, Hannelore, et al. Schattenwirtschaft. Vahlen, 1984.
Warning: These citations may not always be 100% accurate.