Adlard, P. (1980). Growing stock levels and productivity conclusions from thinning and spacing trials in young Pinus patula stands in Southern Tanzania. Commenwealth Forestry Institute, University of Oxford.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Adlard, P. Growing Stock Levels and Productivity Conclusions from Thinning and Spacing Trials in Young Pinus Patula Stands in Southern Tanzania. Commenwealth Forestry Institute, University of Oxford, 1980.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Adlard, P. Growing Stock Levels and Productivity Conclusions from Thinning and Spacing Trials in Young Pinus Patula Stands in Southern Tanzania. Commenwealth Forestry Institute, University of Oxford, 1980.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.