Cita APA (7th ed.)

Ash removal [slaid]. Tampa, Fl. : Resource Inc..

Cita Chicago (17th ed.)

Ash Removal [slaid]. Tampa, Fl. : Resource Inc..

Cita MLA (9th ed.)

Ash Removal [slaid]. Tampa, Fl. : Resource Inc..

Atenció: Aquestes cites poden no estar 100% correctes.