B.D.SINGH. (2008). BIOTECHNOLOGY: EXPANDING HORIZONS.
Chicago Style aipamenaB.D.SINGH. BIOTECHNOLOGY: EXPANDING HORIZONS. NEW DELHI, 2008.
MLA aipamenaB.D.SINGH. BIOTECHNOLOGY: EXPANDING HORIZONS. 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.