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How to Grow Marijuana Hydroponically

Patrick Daniels

出版	Sun Magic Publishing Company, 1979
URL	http://books.google.com.hk/books?id=cHdLAAAACAAJ&hl=&source=gbs_api

註釋

"Old methods of farming will eventually become obsolete with hydroponics. This method of growing is efficient, space saving and easy."--Provided by synopsis