Cita APA (7a ed.)

Day, B. L., & Lord, S. R. (2018). Balance, gait, and falls. Elsevier.

Cita Chicago Style (17a ed.)

Day, Brian L., y Stephen R. Lord. Balance, Gait, and Falls. Amsterdam, Netherlands ; Oxford, United Kingdom ; Cambridge, MA, United States: Elsevier, 2018.

Cita MLA (9a ed.)

Day, Brian L., y Stephen R. Lord. Balance, Gait, and Falls. Elsevier, 2018.