APA aipamena

Joven, J. E. A. (1998). Developing plant extracts into herbicides. PCARRD Monitor.

Chicago Style aipamena

Joven, Joel Eneristo A. "Developing Plant Extracts into Herbicides." PCARRD Monitor 1998.

MLA aipamena

Joven, Joel Eneristo A. "Developing Plant Extracts into Herbicides." PCARRD Monitor, 1998.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.