Clayton, E. (1983). Agriculture poverty and freedom in: Developing countries. Macmillan Pr..
Chicago Style (17th ed.) ZitazioaClayton, Eric. Agriculture Poverty and Freedom in: Developing Countries. London: Macmillan Pr., 1983.
MLA (9th ed.) ZitazioaClayton, Eric. Agriculture Poverty and Freedom in: Developing Countries. Macmillan Pr., 1983.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.