Helvering, Commissioner of Internal Revenue, et al. v. Davis. Great Neck Publishing.
Citazione stile Chigago Style (17a edizione)Helvering, Commissioner of Internal Revenue, Et Al. V. Davis. Great Neck Publishing.
Citatione MLA (9a ed.)Helvering, Commissioner of Internal Revenue, Et Al. V. Davis. Great Neck Publishing.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.