Cita APA (7a ed.)

Spitz, B., & Spitz.B. (1972). Tax Havens Encyclopaedia. Butterworths.

Cita Chicago Style (17a ed.)

Spitz, B., y Spitz.B. Tax Havens Encyclopaedia. Londan: Butterworths, 1972.

Cita MLA (9a ed.)

Spitz, B., y Spitz.B. Tax Havens Encyclopaedia. Butterworths, 1972.