California. State Department of Education. (1984). A guide for vision screening in California public schools. The Department.
Citazione stile Chigago Style (17a edizione)California. State Department of Education. A Guide for Vision Screening in California Public Schools. Sacramento, Calif: The Department, 1984.
Citatione MLA (9a ed.)California. State Department of Education. A Guide for Vision Screening in California Public Schools. The Department, 1984.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.