APA
Parker D., . (1994). 20/20 : mobilizing resources for children in the 1990S. UNICEF, New York: .
Chicago
Parker David, . 1994. 20/20 : mobilizing resources for children in the 1990S. UNICEF, New York: .
Harvard
Parker D., . (1994). 20/20 : mobilizing resources for children in the 1990S. UNICEF, New York: .
MLA
Parker David, . 20/20 : mobilizing resources for children in the 1990S. UNICEF, New York: . 1994.