Online - Pay by credit card, check or your account.
By Phone - Call us at 800.628.7748 Mon.- Thurs. 7:30 -12:00, 12:30-3:00 pm EST, Fri.Closed
By Fax - Fax your order with ourpdf form.
1971. Dr. Robert Stegner. This manual covers the study and practice of hydroponics -- plant culture in soil-less nutrient solutions. Includes a series of laboratory procedures and open-ended investigations. 76 pages, soft cover.