Hydroponics growing without soil : easy-to-follow instructions for the flatdweller, modern gardener and commercial grower
Harris, Dudley.
Berrie, A. M. M.
Walls, Ian G.(Ian Gascoigne),1922-
Newton Abbot David and Charles
1975
Previous ed.: i.e. 3rd ed. Cape Town : Purnell, 1971
Bibliography: p.209-211. - Includes index
Hydroponics.