APA aipamena

Keating, J. M. (1880). The Value of Sanitation from an Economic Stand-Point.

Chicago Style aipamena

Keating, J. M. The Value of Sanitation From an Economic Stand-Point. 1880.

MLA aipamena

Keating, J. M. The Value of Sanitation From an Economic Stand-Point. 1880.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.