APA
United Nations. Economic and Social Affairs, United Nations. Economic and Social Affairs, . (1971). Tax reform planning. New: York United Nations U S A.
Chicago
United Nations. Economic and Social Affairs, United Nations. Economic and Social Affairs, . 1971. Tax reform planning. New: York United Nations U S A.
Harvard
United Nations. Economic and Social Affairs, United Nations. Economic and Social Affairs, . (1971). Tax reform planning. New: York United Nations U S A.
MLA
United Nations. Economic and Social Affairs, United Nations. Economic and Social Affairs, . Tax reform planning. New: York United Nations U S A. 1971.