APA (7th ed.) Citation

Royal Horticultural Society. (1946). National fruit trials, 1921-1944. The Royal Horticultural Society.

Chicago Style (17th ed.) Citation

Royal Horticultural Society. National Fruit Trials, 1921-1944. London: The Royal Horticultural Society, 1946.

MLA (9th ed.) Citation

Royal Horticultural Society. National Fruit Trials, 1921-1944. The Royal Horticultural Society, 1946.

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