Brenner, G., Ford, M., & Sullivan, P. (2007). Celebrate: Holidays in the U.S.A (2nd ed.). Washington: Office of English Language Programs. United States Department of State.
استشهاد بنمط شيكاغوBrenner, Gail, Masha Ford, و Patricia Sullivan. Celebrate: Holidays in the U.S.A. 2nd ed. Washington: Office of English Language Programs. United States Department of State, 2007.
MLA استشهادBrenner, Gail, Masha Ford, و Patricia Sullivan. Celebrate: Holidays in the U.S.A. 2nd ed. Washington: Office of English Language Programs. United States Department of State, 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.