Electronic Travel AidsCommittee on Vision, Working Group on Mobility Aids for the Visually Impaired and BlindPocketEngelskLegg i handlekurvNettlager
Emergent Techniques for Assessment of Visual PerformanceCommission on Behavioral and Social Sciences and Education, National Research Council og 2 andrePocketEngelskLegg i handlekurvNettlager
Procedures for Testing Color VisionCommission on Behavioral and Social Sciences and Education, National Research Council og 2 andrePocketEngelskLegg i handlekurvNettlager
