TY  - BOOK
AU  - Vaughan,D.
TI  - A possible mechanism for humic acid action on cell elongation in root segments of Pisum sativum under aseptic condition
UR  - https://drive.google.com/file/d/1TVotnfX9TVrjR1g2BzUMYxP_u4eCVxRn/view?usp=drivesdk
ER  -