APA (7 ম সংস্করণ) উদ্ধৃতি

South Africa. Dept. of National Health and Population Development. (1992). Air pollution control in South Africa. Dept. of National Health and Population Development.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

South Africa. Dept. of National Health and Population Development. Air Pollution Control in South Africa. Pretoria: Dept. of National Health and Population Development, 1992.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

South Africa. Dept. of National Health and Population Development. Air Pollution Control in South Africa. Dept. of National Health and Population Development, 1992.