Hydroponics
By: Carol Kopolow.
Contributors: National Agricultural Library (U.S.)
Series: Agri-topics -- no. AT 91-02.
Publisher: National Agricultural Library
Published: 1991
Place of publication: Beltsville, Md
Language: eng
Subjects: Hydroponics -- Bibliography.
Notes: Shipping list no.: 91-533-P.

"July 1991."