Cita APA (7a ed.)

John Steven Torday & Torday, J. S. (2014). In memory of Mary Ellen Avery. Frontiers Media SA.

Cita Chicago Style (17a ed.)

John Steven Torday y John Steven Torday. In Memory of Mary Ellen Avery. [Lausanne, Switzerland]: Frontiers Media SA, 2014.

Cita MLA (9a ed.)

John Steven Torday y John Steven Torday. In Memory of Mary Ellen Avery. Frontiers Media SA, 2014.