Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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