APA (7 वां संस्करण) प्रशस्ति पत्र

Royal Horticultural Society & Brickell, C. (2006). The Royal Horticultural Society encyclopedia of plants and flowers (4th ed.). Dorling Kindersley.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Royal Horticultural Society और Christopher Brickell. The Royal Horticultural Society Encyclopedia of Plants and Flowers. 4th ed. London: Dorling Kindersley, 2006.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Royal Horticultural Society और Christopher Brickell. The Royal Horticultural Society Encyclopedia of Plants and Flowers. 4th ed. Dorling Kindersley, 2006.