APA (7. basım) Alıntı

Pocock, S. J. Group sequential methods in design and analysis of clinical trials.

Chicago Style (17. basım) Atıf

Pocock, Stuart J. Group Sequential Methods in Design and Analysis of Clinical Trials. 1977.

MLA (9th ed.) Atıf

Pocock, Stuart J. Group Sequential Methods in Design and Analysis of Clinical Trials.