APA
"United Nations D. S. a. M. S. (. o., "United Nations D. S. a. M. S. (. o., . (1995). Guidelines on performance contracting. New: York United Nations U. S. A.
Chicago
"United Nations Development Support and Management Services (Department of...)", "United Nations Development Support and Management Services (Department of...)", . 1995. Guidelines on performance contracting. New: York United Nations U. S. A.
Harvard
"United Nations D. S. a. M. S. (. o., "United Nations D. S. a. M. S. (. o., . (1995). Guidelines on performance contracting. New: York United Nations U. S. A.
MLA
"United Nations Development Support and Management Services (Department of...)", "United Nations Development Support and Management Services (Department of...)", . Guidelines on performance contracting. New: York United Nations U. S. A. 1995.
