APA
UNITED NATIONS INDUSTRIAL DEVELOPMENT ORGANIZATION, UNITED NATIONS INDUSTRIAL DEVELOPMENT ORGANIZATION, . (1976). Acceptable quality levels in leathers. New: York UN USA.
Chicago
UNITED NATIONS INDUSTRIAL DEVELOPMENT ORGANIZATION, UNITED NATIONS INDUSTRIAL DEVELOPMENT ORGANIZATION, . 1976. Acceptable quality levels in leathers. New: York UN USA.
Harvard
UNITED NATIONS INDUSTRIAL DEVELOPMENT ORGANIZATION, UNITED NATIONS INDUSTRIAL DEVELOPMENT ORGANIZATION, . (1976). Acceptable quality levels in leathers. New: York UN USA.
MLA
UNITED NATIONS INDUSTRIAL DEVELOPMENT ORGANIZATION, UNITED NATIONS INDUSTRIAL DEVELOPMENT ORGANIZATION, . Acceptable quality levels in leathers. New: York UN USA. 1976.