APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

Warning: These citations may not always be 100% accurate.