APA
(2010). Balancing costs with use. Addis Ababa: FRAZ printing press.
Chicago
2010. Balancing costs with use. Addis Ababa: FRAZ printing press.
Harvard
(2010). Balancing costs with use. Addis Ababa: FRAZ printing press.
MLA
Balancing costs with use. Addis Ababa: FRAZ printing press. 2010.