APA (7 ম সংস্করণ) উদ্ধৃতি

General Certificate of Secondary Education. (1990). Co-ordinated science: The Suffolk development. East Midland Regional Examination Board.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

General Certificate of Secondary Education. Co-ordinated Science: The Suffolk Development. [s.l.]: East Midland Regional Examination Board, 1990.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

General Certificate of Secondary Education. Co-ordinated Science: The Suffolk Development. East Midland Regional Examination Board, 1990.