Dyfyniad APA

(1971). works,machinery and rolling stock programmes of railways for 1971-72. Ministry of Railways.

Dyfyniad Arddull Chicago

Works,machinery and Rolling Stock Programmes of Railways for 1971-72. New Delhi: Ministry of Railways, 1971.

Dyfyniad MLA

Works,machinery and Rolling Stock Programmes of Railways for 1971-72. Ministry of Railways, 1971.

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