APA (7th ed.) Zitazioa
Barbour, J. B., & Pfister, H. Mach's Principle: From Newton's Bucket to Quantum Gravity. Birkhäuser.
Chicago Style (17th ed.) Zitazioa
Barbour, Julian B., eta Herbert Pfister. Mach's Principle: From Newton's Bucket to Quantum Gravity. Boston, EUA: Birkhäuser.
MLA (9th ed.) Zitazioa
Barbour, Julian B., eta Herbert Pfister. Mach's Principle: From Newton's Bucket to Quantum Gravity. Birkhäuser.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.