APA
United nations educational scientific and cultural Organization, United nations educational scientific and cultural Organization, . (1977). Spines pilot programmes. Paris: Unesco Press.
Chicago
United nations educational scientific and cultural Organization, United nations educational scientific and cultural Organization, . 1977. Spines pilot programmes. Paris: Unesco Press.
Harvard
United nations educational scientific and cultural Organization, United nations educational scientific and cultural Organization, . (1977). Spines pilot programmes. Paris: Unesco Press.
MLA
United nations educational scientific and cultural Organization, United nations educational scientific and cultural Organization, . Spines pilot programmes. Paris: Unesco Press. 1977.
