To see or not to see :
visual acuity of pilots involved in midair collisions /
Leonard C. Ryan ... [et al.] ; Office of Aviation Medicine, Federal Aviation Administration ... [et al.].

APA Citation

Ryan, L. C., United States. Office of Aviation Medicine. (1975). To see or not to see: visual acuity of pilots involved in midair collisions. Washington, D.C.: The Office.

MLA Citation

Ryan, Leonard C, and United States. Office of Aviation Medicine. To See Or Not to See: Visual Acuity of Pilots Involved In Midair Collisions. Washington, D.C.: The Office, 1975.

Warning: These citations may not always be complete (especially for serials).