Smith, F. A. (1896). Maintenance of way standards on American railways: And rules and instructions governing roadway departments. Roadmaster and foreman.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Smith, Frederick A. Maintenance of Way Standards on American Railways: And Rules and Instructions Governing Roadway Departments. Chicago: Roadmaster and foreman, 1896.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Smith, Frederick A. Maintenance of Way Standards on American Railways: And Rules and Instructions Governing Roadway Departments. Roadmaster and foreman, 1896.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.