APA
UNITED NATIONS ECONOMIC AND SOCIAL DEVELOPMENT (Deptt. of -), UNITED NATIONS ECONOMIC AND SOCIAL DEVELOPMENT (Deptt. of -), . (1993). International environmental law. New: York UN.
Chicago
UNITED NATIONS ECONOMIC AND SOCIAL DEVELOPMENT (Deptt. of -), UNITED NATIONS ECONOMIC AND SOCIAL DEVELOPMENT (Deptt. of -), . 1993. International environmental law. New: York UN.
Harvard
UNITED NATIONS ECONOMIC AND SOCIAL DEVELOPMENT (Deptt. of -), UNITED NATIONS ECONOMIC AND SOCIAL DEVELOPMENT (Deptt. of -), . (1993). International environmental law. New: York UN.
MLA
UNITED NATIONS ECONOMIC AND SOCIAL DEVELOPMENT (Deptt. of -), UNITED NATIONS ECONOMIC AND SOCIAL DEVELOPMENT (Deptt. of -), . International environmental law. New: York UN. 1993.
