APA (7e ed.) Bronvermelding

Joerdens-Roettger, D. (1987). Seed potato production in the Philippines: In vitro culture and rapid multiplication techniques. TZ-Verlagsgesellschaft.

Chicago (17e ed.) Bronvermelding

Joerdens-Roettger, Dagmar. Seed Potato Production in the Philippines: In Vitro Culture and Rapid Multiplication Techniques. Eschborn: TZ-Verlagsgesellschaft, 1987.

MLA (9e ed.) Bronvermelding

Joerdens-Roettger, Dagmar. Seed Potato Production in the Philippines: In Vitro Culture and Rapid Multiplication Techniques. TZ-Verlagsgesellschaft, 1987.