Mowles, G. Zurich Tax Handbook: 2012-13 (1.). Pearson Education UK.
Chicago Style aipamenaMowles, Gerald;Foreman. Zurich Tax Handbook: 2012-13. 1. Pearson Education UK.
MLA aipamenaMowles, Gerald;Foreman. Zurich Tax Handbook: 2012-13. 1. Pearson Education UK.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.