Joerdens-Roettger, D. (1987). Seed potato production in the Philippines: In vitro culture and rapid multiplication techniques. TZ-Verlagsgesellschaft.
Cita Chicago (17th ed.)Joerdens-Roettger, Dagmar. Seed Potato Production in the Philippines: In Vitro Culture and Rapid Multiplication Techniques. Eschborn: TZ-Verlagsgesellschaft, 1987.
Cita MLA (9th ed.)Joerdens-Roettger, Dagmar. Seed Potato Production in the Philippines: In Vitro Culture and Rapid Multiplication Techniques. TZ-Verlagsgesellschaft, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.