APA (7 ম সংস্করণ) উদ্ধৃতি

Hefti, T. (1997). Quality system model for development and maintenance of software in pharmaceutical manufacturing. Rosch-Buch.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Hefti, Thomas. Quality System Model for Development and Maintenance of Software in Pharmaceutical Manufacturing. Schesslitz: Rosch-Buch, 1997.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Hefti, Thomas. Quality System Model for Development and Maintenance of Software in Pharmaceutical Manufacturing. Rosch-Buch, 1997.