Cita APA (7th ed.)

Pryce-Jones, D., & Hopker, T. (1978). Vienna. Time-Life International.

Cita Chicago (17th ed.)

Pryce-Jones, David, i Thomas Hopker. Vienna. Amsterdam: Time-Life International, 1978.

Cita MLA (9th ed.)

Pryce-Jones, David, i Thomas Hopker. Vienna. Time-Life International, 1978.