Cita APA (7a ed.)

Smith, J., & Spurling, A. (1999). Lifelong learning: Riding the tiger. Cassell.

Cita Chicago Style (17a ed.)

Smith, Jim, y Andrea Spurling. Lifelong Learning: Riding the Tiger. London [etc.]: Cassell, 1999.

Cita MLA (9a ed.)

Smith, Jim, y Andrea Spurling. Lifelong Learning: Riding the Tiger. Cassell, 1999.