एपीए उद्धरण

Spurr, W. (1954). Business and economic statistics. Richard D Irvin.

शिकागो स्टाइल उद्धरण

Spurr, W.A. Business and Economic Statistics. Richard D Irvin, 1954.

एमएलए उद्धरण

Spurr, W.A. Business and Economic Statistics. Richard D Irvin, 1954.