APA
UNITED NATIONS E. C. F. E., UNITED NATIONS E. C. F. E., . (1991). Standards for fresh fruit and vegitables. New York: UN USA.
Chicago
UNITED NATIONS ECONOMIC COMMISSION FOR EUROPE, UNITED NATIONS ECONOMIC COMMISSION FOR EUROPE, . 1991. Standards for fresh fruit and vegitables. New York: UN USA.
Harvard
UNITED NATIONS E. C. F. E., UNITED NATIONS E. C. F. E., . (1991). Standards for fresh fruit and vegitables. New York: UN USA.
MLA
UNITED NATIONS ECONOMIC COMMISSION FOR EUROPE, UNITED NATIONS ECONOMIC COMMISSION FOR EUROPE, . Standards for fresh fruit and vegitables. New York: UN USA. 1991.