Singapore. Ministry of Finance. (1961). Development, 1961-64. s.n.
Chicago Style aipamenaSingapore. Ministry of Finance. Development, 1961-64. s.l: s.n, 1961.
MLA aipamenaSingapore. Ministry of Finance. Development, 1961-64. s.n, 1961.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.