एपीए उद्धरण

Gupta c, b. Statistical methods. vikas publishing house pvt ltd.

शिकागो स्टाइल उद्धरण

Gupta c, b. Statistical Methods. Delhi: vikas publishing house pvt ltd.

एमएलए उद्धरण

Gupta c, b. Statistical Methods. vikas publishing house pvt ltd.