Cita APA

McLaren, D. S., & Frigg, M. (2001). Sight and life guidebook on vitamin A in health and disease (2. edition.). Basel, Switzerland: Sight and Life.

Citación estilo Chicago

McLaren, Donald Stewart, y Martin Frigg. Sight and Life Guidebook On Vitamin A in Health and Disease. 2. edition. Basel, Switzerland: Sight and Life, 2001.

Cita MLA

McLaren, Donald Stewart, y Martin Frigg. Sight and Life Guidebook On Vitamin A in Health and Disease. 2. edition. Basel, Switzerland: Sight and Life, 2001.