Post History
Short answer: You can't. But you shouldn't worry about it. Good textbooks get updated. They are refreshed and corrected, new material is added, things are changed to reflect reader/student/teacher...
Answer
#4: Attribution notice removed
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#3: Attribution notice added
Source: https://writers.stackexchange.com/a/14125 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#2: Initial revision
Short answer: You can't. But you shouldn't worry about it. Good textbooks get updated. They are refreshed and corrected, new material is added, things are changed to reflect reader/student/teacher feedback, and items which are no longer valid are removed. This is a _good_ thing. I'm not saying you have to put out a new edition every year, but updating a textbook or workbook series every five or 10 years is hardly something to complain about. New students will be getting whatever the current version is. Older students can't expect that the book they bought in 1995 is still 100% applicable in 2014. The world changes. (Amusing and related anecdote: I took a history course in college. My textbook was R.R. Palmer's _A History of the Modern World._ I think it was the 7th edition. I went home on break, and I happened to be looking through my mother's bookshelves. She also had R.R. Palmer's _A History of the Modern World_... the _3rd_ edition. I would not have expected to be able to grab her copy from 30 years prior and use it in my class.)