APA
(2001). Operational guidelines on cross-border control of priority communicable diseases. New Delhi: World Health Organization.
Chicago
2001. Operational guidelines on cross-border control of priority communicable diseases. New Delhi: World Health Organization.
Harvard
(2001). Operational guidelines on cross-border control of priority communicable diseases. New Delhi: World Health Organization.
MLA
Operational guidelines on cross-border control of priority communicable diseases. New Delhi: World Health Organization. 2001.