Sugarland (Musical group), Lady Antebellum (Musical group), Montgomery Gentry (Musical group), Urban, K., Adkins, T., McKenna, L., . . . Judd, W. (2012). Valor: The album : the only easy day was yesterday. Relativity Music Group.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sugarland (Musical group), et al. Valor: The Album : The Only Easy Day Was Yesterday. Los Angeles, Calif.: Relativity Music Group, 2012.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sugarland (Musical group), et al. Valor: The Album : The Only Easy Day Was Yesterday. Relativity Music Group, 2012.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.