Cita APA (7a ed.)

Greenhalgh, S., Selfe, J., Finucane, L., & Mercer, C. (2019). Red flags and blue lights: Managing serious spinal pathology (Second edition.). Elsevier.

Cita Chicago Style (17a ed.)

Greenhalgh, Sue, James Selfe, Laura Finucane, y Chris Mercer. Red Flags and Blue Lights: Managing Serious Spinal Pathology. Second edition. Edinburgh: Elsevier, 2019.

Cita MLA (9a ed.)

Greenhalgh, Sue, et al. Red Flags and Blue Lights: Managing Serious Spinal Pathology. Second edition. Elsevier, 2019.