APA استشهاد

Spiegel,, M. R., & Stephens,, L. Theory and problems statistics (3.). Tata McGraw-Hill publishing Company Limited.

استشهاد بنمط شيكاغو

Spiegel,, Murray R., و Larry.J Stephens. Theory and Problems Statistics. 3. New Delhi: Tata McGraw-Hill publishing Company Limited.

MLA استشهاد

Spiegel,, Murray R., و Larry.J Stephens. Theory and Problems Statistics. 3. Tata McGraw-Hill publishing Company Limited.