Παραπομπή σε μορφή APA (7η εκδ.)

Walker, G. A. (1996). Common statistical methods for clinical research: With SAS examples. Collins-Wellesley Publishing.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Walker, Glenn A. Common Statistical Methods for Clinical Research: With SAS Examples. San Diego: Collins-Wellesley Publishing, 1996.

Παραπομπή σε μορφή MLA (8th εκδ.)

Walker, Glenn A. Common Statistical Methods for Clinical Research: With SAS Examples. Collins-Wellesley Publishing, 1996.