Howland, S. A. (1840). Steamboat disasters and railroad accidents in the United States: To which is appended accounts of recent shipwrecks, fires at sea, thrilling incidents, &c (2d ed.). Dorr, Howland.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Howland, S. A. Steamboat Disasters and Railroad Accidents in the United States: To Which Is Appended Accounts of Recent Shipwrecks, Fires at Sea, Thrilling Incidents, &c. 2d ed. Worcester [Mass.]: Dorr, Howland, 1840.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Howland, S. A. Steamboat Disasters and Railroad Accidents in the United States: To Which Is Appended Accounts of Recent Shipwrecks, Fires at Sea, Thrilling Incidents, &c. 2d ed. Dorr, Howland, 1840.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.