TY  - BOOK
AU  - " Helgeson,John P. "
TI  - Use of tissue culture and protoplasts in plant pathology
U1  - 578.085.23:576.311:612.3 M3 
PB  - "New York : Academic Press Inc, 1983"
KW  - " Deverall, B. J."
KW  - Tissue culture
ER  -