APA (7th ed.) Citation

Sholto Douglas, J. (1972). Beginner's guide to hydroponics: Soilless gardening. Pelham Books.

Chicago Style (17th ed.) Citation

Sholto Douglas, James. Beginner's Guide to Hydroponics: Soilless Gardening. London: Pelham Books, 1972.

MLA (9th ed.) Citation

Sholto Douglas, James. Beginner's Guide to Hydroponics: Soilless Gardening. Pelham Books, 1972.

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