एपीए उद्धरण

(1997). The tariff and the list of the imports-exports (The latest document coming into effect since August 1, 1998). Hà Nội: Statistics.

शिकागो स्टाइल उद्धरण

The Tariff and the List of the Imports-exports (The Latest Document Coming Into Effect Since August 1, 1998). Hà Nội: Statistics, 1997.

एमएलए उद्धरण

The Tariff and the List of the Imports-exports (The Latest Document Coming Into Effect Since August 1, 1998). Hà Nội: Statistics, 1997.

चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.