Παραπομπή σε μορφή APA (7η εκδ.)

Jennison, C., & Turnbull, B. W. (2000). Group sequential methods with applications to clinical trials. Chapman & Hall/CRC.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Jennison, Christopher, και Bruce W. Turnbull. Group Sequential Methods with Applications to Clinical Trials. Boca Raton: Chapman & Hall/CRC, 2000.

Παραπομπή σε μορφή MLA (9th εκδ.)

Jennison, Christopher, και Bruce W. Turnbull. Group Sequential Methods with Applications to Clinical Trials. Chapman & Hall/CRC, 2000.