LANGE, O. (1967). Essays on economic planning. Asia Publishing House.
Chicago Style (17th ed.) ZitazioaLANGE, Oskar. Essays on Economic Planning. Bombay: Asia Publishing House, 1967.
MLA (9th ed.) ZitazioaLANGE, Oskar. Essays on Economic Planning. Asia Publishing House, 1967.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.