APA
Andersen S. O., Sarma K. M. & Sinclair L. (2004). Protecting the ozone layer. London: Earthscan.
Chicago
Andersen Stephen O, Sarma K Madhava and Sinclair Lani. 2004. Protecting the ozone layer. London: Earthscan.
Harvard
Andersen S. O., Sarma K. M. and Sinclair L. (2004). Protecting the ozone layer. London: Earthscan.
MLA
Andersen Stephen O, Sarma K Madhava and Sinclair Lani. Protecting the ozone layer. London: Earthscan. 2004.