(2002). Biotechology of biofertilizers. Pangbourne, England: Alpha Science International Ltd.
Chicago Style aipamenaBiotechology of Biofertilizers. Pangbourne, England: Alpha Science International Ltd, 2002.
MLA aipamenaBiotechology of Biofertilizers. Pangbourne, England: Alpha Science International Ltd, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.