00630cam a22002291 4500 agr48000369 DLC 20260227111009.0 761108s1948 akua b 000 0 eng agr48000369 (OCoLC)2546350 DLC O OCoLC DLC premarc SB139 .S7 631.58 Spessard, Earle Augustus, 1887- The tanks are coming; practical hydroponics. [Little Rock, Ark., Hydroponics, Inc., 1948] xiv, 164 p. illus. 23 cm. Bibliography: p.iv. Hydroponics. 10863 10863