Cita APA (7th ed.)

Gumpel, H. J. (1969). Taxation in the Federal Republic of Germany (2nd ed.). Commercial Clearing House.

Cita Chicago (17th ed.)

Gumpel, Henry J. Taxation in the Federal Republic of Germany. 2nd ed. Chicago: Commercial Clearing House, 1969.

Cita MLA (9th ed.)

Gumpel, Henry J. Taxation in the Federal Republic of Germany. 2nd ed. Commercial Clearing House, 1969.