Collier, P., Gunning, J., & Paulson, J. (1999). The Impact of Liberalisation on Private Investment. Macmillan Press.
Chicago Style aipamenaCollier, P., J. Gunning, and J. Paulson. The Impact of Liberalisation on Private Investment. Macmillan Press, 1999.
MLA aipamenaCollier, P., et al. The Impact of Liberalisation on Private Investment. Macmillan Press, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.