Hydroponic Food Production Book by Howard M Resh Ph.D. 

This hard-cover book offers more than 500 pages of reference material. The definitive guidebook for the advanced home gardener and the commercial hydroponic grower. 

A complete guide of all facets of food production and hydroponic gardening.

Hydroponic Food Production gives you a thorough review of nutrients, mediums, plant varieties and techniques used for medium-level and high-level hydroponic food cultivation.

The book to have on hand for any hydroponics gardener.