APA
United Nations Centre for Human Settlements, . (1993). Vertical-shaft limekiln technology. Nairobi: United Nations Centre for Human settlements(Habitat).
Chicago
United Nations Centre for Human Settlements, . 1993. Vertical-shaft limekiln technology. Nairobi: United Nations Centre for Human settlements(Habitat).
Harvard
United Nations Centre for Human Settlements, . (1993). Vertical-shaft limekiln technology. Nairobi: United Nations Centre for Human settlements(Habitat).
MLA
United Nations Centre for Human Settlements, . Vertical-shaft limekiln technology. Nairobi: United Nations Centre for Human settlements(Habitat). 1993.