Παραπομπή σε μορφή APA (7η εκδ.)

Bulgren, W. G. (1971). A computer-assisted approach to elementary statistics: Examples and problems. Wadsworth Pub. Co..

Παραπομπή σε μορφή Chicago (17η εκδ.)

Bulgren, William G. A Computer-assisted Approach to Elementary Statistics: Examples and Problems. Belmont, Calif.: Wadsworth Pub. Co., 1971.

Παραπομπή σε μορφή MLA (8th εκδ.)

Bulgren, William G. A Computer-assisted Approach to Elementary Statistics: Examples and Problems. Wadsworth Pub. Co., 1971.