APA (7 ম সংস্করণ) উদ্ধৃতি

Gravells, A. (2016). Principles & practices of quality assurance: A guide for internal and external quality assurers in the FE and skills sector. Learning Matters.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Gravells, Ann. Principles & Practices of Quality Assurance: A Guide for Internal and External Quality Assurers in the FE and Skills Sector. SAGE: Learning Matters, 2016.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Gravells, Ann. Principles & Practices of Quality Assurance: A Guide for Internal and External Quality Assurers in the FE and Skills Sector. Learning Matters, 2016.