Gaya APA

Freeman, K, F. et al (2007). Optometric clinical practice guideline : care of the patient with visual impairment (low vision rehabilitation) . Missouri: American Optometric Association.

Gaya MLA

Freeman, Kathleen, Fraser. et al. "Optometric clinical practice guideline : care of the patient with visual impairment (low vision rehabilitation)". Missouri: American Optometric Association, 2007. E-book.