TY  - BOOK
AU  - Joerdens-Roettger, D.
TI  - Seed potato production in the Philippines: In vitro culture and rapid multiplication techniques 
SN  -  38880853479
AV  - SB117.4.P4.J6 1987 
PY  - 1987///
CY  - Germany
PB  - GTZ
ER  -