Singh, P. (2023). Note on the eucalyptus oil industry in the Nilgiris; 2. Note on the distillation of Geranium oil in the Nilgiris; 3. Note on the manufacture of wintergreen oil in India. Order of Government of India.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Singh, Puran. Note on the Eucalyptus Oil Industry in the Nilgiris; 2. Note on the Distillation of Geranium Oil in the Nilgiris; 3. Note on the Manufacture of Wintergreen Oil in India. Order of Government of India, 2023.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Singh, Puran. Note on the Eucalyptus Oil Industry in the Nilgiris; 2. Note on the Distillation of Geranium Oil in the Nilgiris; 3. Note on the Manufacture of Wintergreen Oil in India. Order of Government of India, 2023.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.