Hayward, N. (1864). Petition of Nathaniel Hayward: For an extension of his invention for using sulphur with India rubber. Bulletin Job Print. Office.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Hayward, Nathaniel. Petition of Nathaniel Hayward: For an Extension of His Invention for Using Sulphur with India Rubber. Norwich [Conn.]: Bulletin Job Print. Office, 1864.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Hayward, Nathaniel. Petition of Nathaniel Hayward: For an Extension of His Invention for Using Sulphur with India Rubber. Bulletin Job Print. Office, 1864.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.