एपीए उद्धरण

Krypton, C. (1956). Northern sea route: And the economy of the Soviet North. methuen & Co.

शिकागो स्टाइल उद्धरण

Krypton, Constantine. Northern Sea Route: And the Economy of the Soviet North. London: methuen & Co, 1956.

एमएलए उद्धरण

Krypton, Constantine. Northern Sea Route: And the Economy of the Soviet North. methuen & Co, 1956.