APA (7th ed.) Zitazioa
The Boy Mechanic: Book One. Popular Mechanics Press.
Chicago Style (17th ed.) Zitazioa
The Boy Mechanic: Book One. Chicago, EUA: Popular Mechanics Press.
MLA (9th ed.) Zitazioa
The Boy Mechanic: Book One. Popular Mechanics Press.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.