1. F. P. Greene, A modified cloze procedure for assessing adult reading comprehension . Unpublished doctoral thesis, University of Michigan, 1964 .
2. E. F. Rankin, E. Thurston, and L. Hafner, The cloze procedure - a survey of research . In), The philosophical and sociological bases of reading. Yearbook of the National Reading Conference, 1965 , No. 14 .