APA (7e ed.) Bronvermelding

SPIEGEL, M. R. (1992). Theory and problems of statistics.-- Ed.2. McGraw-Hill Book.

Chicago (17e ed.) Bronvermelding

SPIEGEL, Murray R. Theory and Problems of Statistics.-- Ed.2. London: McGraw-Hill Book, 1992.

MLA (9e ed.) Bronvermelding

SPIEGEL, Murray R. Theory and Problems of Statistics.-- Ed.2. McGraw-Hill Book, 1992.