U.S. Educational Research Information Center. (1967). Office of Education research reports, 1956-65. ED 002 747-ED 003 960. U.S. Govt. Print. Off.
Citazione stile Chigago Style (17a edizione)U.S. Educational Research Information Center. Office of Education Research Reports, 1956-65. ED 002 747-ED 003 960. [Washington: U.S. Govt. Print. Off, 1967.
Citatione MLA (9a ed.)U.S. Educational Research Information Center. Office of Education Research Reports, 1956-65. ED 002 747-ED 003 960. U.S. Govt. Print. Off, 1967.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.