APA aipamena

Bridgman, H. A. Global air pollution problems for the 1990s. John Wiley and Sons.

Chicago Style aipamena

Bridgman, Howard A. Global Air Pollution Problems for the 1990s. John Wiley and Sons.

MLA aipamena

Bridgman, Howard A. Global Air Pollution Problems for the 1990s. John Wiley and Sons.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.