Educational Research Council of America. (1977). Our country: Learner-verified edition II. Allyn and Bacon.
Citazione stile Chigago Style (17a edizione)Educational Research Council of America. Our Country: Learner-verified Edition II. Boston [u.a.]: Allyn and Bacon, 1977.
Citatione MLA (9a ed.)Educational Research Council of America. Our Country: Learner-verified Edition II. Allyn and Bacon, 1977.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.