APA aipamena

Frazer, L. (2004). Low water consumption: A new goal for coal.

Chicago Style aipamena

Frazer, Lance. Low Water Consumption: A New Goal for Coal. 2004.

MLA aipamena

Frazer, Lance. Low Water Consumption: A New Goal for Coal. 2004.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.