Thomas, G. S. (1983). Graham Stuart Thomas' Three gardens of pleasant flowers: With notes on their design, maintenance, and plants. Collingridge.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Thomas, Graham Stuart. Graham Stuart Thomas' Three Gardens of Pleasant Flowers: With Notes on Their Design, Maintenance, and Plants. England: Collingridge, 1983.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Thomas, Graham Stuart. Graham Stuart Thomas' Three Gardens of Pleasant Flowers: With Notes on Their Design, Maintenance, and Plants. Collingridge, 1983.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.