(2000). Growth of lodgepole pine thinned to various densities on two sites with differing productivities in Central Oregon / P.H. Cochran and Walter G. Dahms.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Growth of Lodgepole Pine Thinned to Various Densities on Two Sites with Differing Productivities in Central Oregon / P.H. Cochran and Walter G. Dahms. 2000.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Growth of Lodgepole Pine Thinned to Various Densities on Two Sites with Differing Productivities in Central Oregon / P.H. Cochran and Walter G. Dahms. 2000.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.