Pennsylvania. Dept. of Forestry. (1907). Report of the Pennsylvania Department of Forestry, for the years . Harrisburg Pub. Co., State printer.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Pennsylvania. Dept. of Forestry. Report of the Pennsylvania Department of Forestry, for the Years . Harrisburg, Pa.: Harrisburg Pub. Co., State printer, 1907.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Pennsylvania. Dept. of Forestry. Report of the Pennsylvania Department of Forestry, for the Years . Harrisburg Pub. Co., State printer, 1907.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.