Cita APA (7a ed.)

Webber, S., & Webber, T. (2004). World cultures: Russia. Teach Yourself.

Cita Chicago Style (17a ed.)

Webber, Stephen, y Tatyana Webber. World Cultures: Russia. Londres: Teach Yourself, 2004.

Cita MLA (8a ed.)

Webber, Stephen, y Tatyana Webber. World Cultures: Russia. Teach Yourself, 2004.