Cummings, T. G., & Worley, C. G. [ca. 2008]. Organization development & change (9. ed., internat. student ed.) [Book]. Mason, Ohio: South Western Cengage Learning.

CUMMINGS, Thomas G. und WORLEY, Christopher G., 2008. Organization development & change. 9. ed., internat. student ed. Mason, Ohio: South Western Cengage Learning. ISBN 9780324580532.

Cummings, T. G., und C. G. Worley. Organization development & change. 9. ed., internat. student ed., book, South Western Cengage Learning, 2008.

Cummings, Thomas G./Worley, Christopher G.: Organization development & change, 9. ed., internat. student ed. Aufl. Mason, Ohio 2008.

Cummings, T.G. und Worley, C.G. (2008), Organization development & change, 9. ed., internat. student ed., Bd. , South Western Cengage Learning, Mason, Ohio.