Não informado. (2020). Report on the Progress and Condition of the Royal Botanic Gardens at Kew. Her Majesty's Stationery Office.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Não informado. Report on the Progress and Condition of the Royal Botanic Gardens at Kew. London: Her Majesty's Stationery Office, 2020.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Não informado. Report on the Progress and Condition of the Royal Botanic Gardens at Kew. Her Majesty's Stationery Office, 2020.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.