APA aipamena

Calcutta Statistical Association Bulletin: Vol.36-37,1987-88. Calcutta Statistical Association.

Chicago Style aipamena

Calcutta Statistical Association Bulletin: Vol.36-37,1987-88. Calcutta: Calcutta Statistical Association.

MLA aipamena

Calcutta Statistical Association Bulletin: Vol.36-37,1987-88. Calcutta Statistical Association.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.