Lewis, J. P., & Valeriana Kallab. (1986). Development Strategies Reconsidered (1.). Liberary of Congress Catalog.
Παραπομπή σε μορφή Chicago (17η εκδ.)Lewis, John P., και Valeriana Kallab. Development Strategies Reconsidered. 1. USA: Liberary of Congress Catalog, 1986.
Παραπομπή σε μορφή MLA (9th εκδ.)Lewis, John P., και Valeriana Kallab. Development Strategies Reconsidered. 1. Liberary of Congress Catalog, 1986.