Dyfyniad APA

Calcutta Statistical Association Bulletin: Vol.28-30,1979-81. Calcutta Statistical Association.

Dyfyniad Arddull Chicago

Calcutta Statistical Association Bulletin: Vol.28-30,1979-81. Calcutta: Calcutta Statistical Association.

Dyfyniad MLA

Calcutta Statistical Association Bulletin: Vol.28-30,1979-81. Calcutta Statistical Association.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.