APA (7th ed.) Zitazioa
Freedonia Group. Construction chemicals. Freedonia Group.
Chicago Style (17th ed.) Zitazioa
Freedonia Group. Construction Chemicals. Cleveland: Freedonia Group.
MLA (9th ed.) Zitazioa
Freedonia Group. Construction Chemicals. Freedonia Group.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.