Cita APA (7th ed.)

ebrary, Inc, & Walls, R. (2013). Vancouver. Intellect.

Cita Chicago (17th ed.)

ebrary, Inc, i Rachel Walls. Vancouver. Bristol, UK ; Chicago: Intellect, 2013.

Cita MLA (9th ed.)

ebrary, Inc, i Rachel Walls. Vancouver. Intellect, 2013.