(1991). Spectacle lenses: Part 3. Specification for the presentation of prescriptions and prescription orders for ophthalmic lenses. London: BSI.
Chicago Style CitationSpectacle Lenses: Part 3. Specification for the Presentation of Prescriptions and Prescription Orders for Ophthalmic Lenses. London: BSI, 1991.
MLA CitationSpectacle Lenses: Part 3. Specification for the Presentation of Prescriptions and Prescription Orders for Ophthalmic Lenses. London: BSI, 1991.
Warning: These citations may not always be 100% accurate.