Cita APA (7th ed.)

Watkinson, S., & Blood, M. (2014). Older people with visual impairment: Clinical management and care. M&K Update Ltd.

Cita Chicago (17th ed.)

Watkinson, Susan, i Mary Blood. Older People with Visual Impairment: Clinical Management and Care. Cumbria, England: M&K Update Ltd, 2014.

Cita MLA (9th ed.)

Watkinson, Susan, i Mary Blood. Older People with Visual Impairment: Clinical Management and Care. M&K Update Ltd, 2014.