. . "Beneficis Estats Units d'Amèrica." . . "Impostos sobre la renda Dret i legislació Estats Units d'Amèrica." . . . . . . . . "Federal taxes on income and profits imposed by the revenue act of 1918" . "Federal taxes on income and profits imposed by the revenue act of 1918"@en . . . . "Federal taxes on income and profits : imposed by the Revenue act of 1918" . . "Federal taxes on income and profits : imposed by the revenue act of 1918" . . . . . .