(2001). Regulated use of chrysotile asbestos. Philippine Daily Inquirer.
Chicago Style aipamena"Regulated Use of Chrysotile Asbestos." Philippine Daily Inquirer 2001.
MLA aipamena"Regulated Use of Chrysotile Asbestos." Philippine Daily Inquirer, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.