Cita APA (7th ed.)
Onions, C., Friedrichsen, G., & Burchfield, R. The Oxford Dictionary of English Etymology. Oxford University.
Cita Chicago (17th ed.)
Onions, C.T, G.W.S Friedrichsen, i R.W Burchfield. The Oxford Dictionary of English Etymology. Oxford, Inglaterra: Oxford University.
Cita MLA (9th ed.)
Onions, C.T, et al. The Oxford Dictionary of English Etymology. Oxford University.
Atenció: Aquestes cites poden no estar 100% correctes.