Mylona, P., Pawlowski, K., & Bisseling, T. (1995). Symbiotic Nitrogen Fixation.
Chicago Style aipamenaMylona, P., K. Pawlowski, and T. Bisseling. Symbiotic Nitrogen Fixation. 1995.
MLA aipamenaMylona, P., K. Pawlowski, and T. Bisseling. Symbiotic Nitrogen Fixation. 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.