DDirections for rating books for structural difficulty ...Directions for rating books for structural difficulty ...de William S. GrayEdiciones (1)Directions for rating books for structural difficulty ...inglésMás obras de William S. GrayOOn their own in readingOn their own in readingWWhat makes a book readableWhat makes a book readableOOn their own in readingOn their own in reading
WWhat makes a book readable, with special reference to adultsWhat makes a book readable, with special reference to adults of limited reading ability1935