APA aipamena

Pawan Kumar Bharti. (2012). Groundwater pollution. Biotech Books ;Newdelhi.

Chicago Style aipamena

Pawan Kumar Bharti. Groundwater Pollution. Biotech Books ;Newdelhi, 2012.

MLA aipamena

Pawan Kumar Bharti. Groundwater Pollution. Biotech Books ;Newdelhi, 2012.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.