APA (7th ed.) Citation

Royal Horticultural Society (Great Britain). Sander's list of orchid hybrids. Royal Horticultural Society.

Chicago Style (17th ed.) Citation

Royal Horticultural Society (Great Britain). Sander's List of Orchid Hybrids. London: Royal Horticultural Society.

MLA (9th ed.) Citation

Royal Horticultural Society (Great Britain). Sander's List of Orchid Hybrids. Royal Horticultural Society.

Warning: These citations may not always be 100% accurate.