Gouch, H. G.; Meschieri, L. (August 1971). "Cross-cultural study of age-related differences in perceptual acuity". Journal of Consulting and Clinical Psychology. 37 (1): 135–140. doi:10.1037/h0031261. ISSN0022-006X. PMID5565615.
Gouch, H. G.; Meschieri, L. (August 1971). "Cross-cultural study of age-related differences in perceptual acuity". Journal of Consulting and Clinical Psychology. 37 (1): 135–140. doi:10.1037/h0031261. ISSN0022-006X. PMID5565615.
Gouch, H. G.; Meschieri, L. (August 1971). "Cross-cultural study of age-related differences in perceptual acuity". Journal of Consulting and Clinical Psychology. 37 (1): 135–140. doi:10.1037/h0031261. ISSN0022-006X. PMID5565615.