South Africa. Dept. of National Health and Population Development. (1992). Air pollution control in South Africa. Dept. of National Health and Population Development.
Chicago-Zitierstil (17. Ausg.)South Africa. Dept. of National Health and Population Development. Air Pollution Control in South Africa. Pretoria: Dept. of National Health and Population Development, 1992.
MLA-Zitierstil (8. Ausg.)South Africa. Dept. of National Health and Population Development. Air Pollution Control in South Africa. Dept. of National Health and Population Development, 1992.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.