APA استشهاد

Spiegel, M. R. (1961). Statistics in SI (Schaums). McGraw Hill Book Co.

استشهاد بنمط شيكاغو

Spiegel, Murray R. Statistics in SI (Schaums). Singapore: McGraw Hill Book Co, 1961.

MLA استشهاد

Spiegel, Murray R. Statistics in SI (Schaums). McGraw Hill Book Co, 1961.