एपीए उद्धरण

Le Van Ninh., Nguyen Bang., Nguyen Duc Trung., & Nguyen Thi Hang. The establishment of the Vietnam atomic time scale.

शिकागो स्टाइल उद्धरण

Le Van Ninh., Nguyen Bang, Nguyen Duc Trung, और Nguyen Thi Hang. The Establishment of the Vietnam Atomic Time Scale.

एमएलए उद्धरण

Le Van Ninh., Nguyen Bang, Nguyen Duc Trung, और Nguyen Thi Hang. The Establishment of the Vietnam Atomic Time Scale.