APA aipamena

MORGAN, P. (1990). Rural water supplies and sanitation. Macmillan.

Chicago Style aipamena

MORGAN, Peter. Rural Water Supplies and Sanitation. Macmillan, 1990.

MLA aipamena

MORGAN, Peter. Rural Water Supplies and Sanitation. Macmillan, 1990.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.