APA
"United Nations I. E. a. S. A. (. o., "United Nations I. E. a. S. A. (. o., . (1988). Contribution to international co-operation in tax. NY: UN.
Chicago
"United Nations International Economic and Social Affairs (Deptt of-)", "United Nations International Economic and Social Affairs (Deptt of-)", . 1988. Contribution to international co-operation in tax. NY: UN.
Harvard
"United Nations I. E. a. S. A. (. o., "United Nations I. E. a. S. A. (. o., . (1988). Contribution to international co-operation in tax. NY: UN.
MLA
"United Nations International Economic and Social Affairs (Deptt of-)", "United Nations International Economic and Social Affairs (Deptt of-)", . Contribution to international co-operation in tax. NY: UN. 1988.
