APA (7th ed.) Zitazioa

Helvering, Commissioner of Internal Revenue, et al. v. Davis. Great Neck Publishing.

Chicago Style (17th ed.) Zitazioa

Helvering, Commissioner of Internal Revenue, Et Al. V. Davis. Great Neck Publishing.

MLA (9th ed.) Zitazioa

Helvering, Commissioner of Internal Revenue, Et Al. V. Davis. Great Neck Publishing.

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