Gaya APA

Stein, H, A. et al (2002). Fitting Guide For Rigid And Soft Contact Lenses ; A Practical Approach (4). Missouri: Mosby.

Gaya MLA

Stein, Harold, A. et al. "Fitting Guide For Rigid And Soft Contact Lenses ; A Practical Approach". 4 Missouri: Mosby, 2002. Text.