Walker, S. M. (2014). Boundaries: How the Mason-Dixon line settled a family feud & divided a nation (1st ed., reinforced trade ed.). Candlewick Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Walker, Sally M. Boundaries: How the Mason-Dixon Line Settled a Family Feud & Divided a Nation. 1st ed., reinforced trade ed. Somerville, Mass.: Candlewick Press, 2014.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Walker, Sally M. Boundaries: How the Mason-Dixon Line Settled a Family Feud & Divided a Nation. 1st ed., reinforced trade ed. Candlewick Press, 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.