Gaya APA

Main, R, F., Opticianry, T, N, A, O. (1997). Ophthalmic dispensing review : multiple choice questions and answers with bibliography . Bowie: The National Academy of Opticianry.

Gaya MLA

Main, Robert, F.., Opticianry, The, National, Academy, Of. "Ophthalmic dispensing review : multiple choice questions and answers with bibliography". Bowie: The National Academy of Opticianry, 1997. Text.