Axel Schreiner's book _Object Orientated Programming with ANSI C_ was published in 1994 and OO easily predates that by a good few years in the mainstream.
Schreiner is the German translation of Kernighan's books and this one is a nice example of using a preprocessor for C, written in awk, to gradually add OO to C so you can understand all the nuts and bolts under the hood of a "native" OO language. English translation PDF available for download. http://www.cs.rit.edu/~ats/books/index.htmlhttp://www.cs.rit.edu/~ats/books/ooc.pdf
I said "in the mainstream", not academia. I'm talking about when personnel departments heard of it and when marketing departments started labelling everything OO.
Schreiner is the German translation of Kernighan's books and this one is a nice example of using a preprocessor for C, written in awk, to gradually add OO to C so you can understand all the nuts and bolts under the hood of a "native" OO language. English translation PDF available for download. http://www.cs.rit.edu/~ats/books/index.html http://www.cs.rit.edu/~ats/books/ooc.pdf