APA aipamena

(1985). Operational statistics, <1980-81, 1982-83>, <1984-85>.

Chicago Style aipamena

Operational Statistics, <1980-81, 1982-83>, <1984-85>. Bombay, 1985.

MLA aipamena

Operational Statistics, <1980-81, 1982-83>, <1984-85>. 1985.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.