I recall reading a small book by T. Skolem presenting classical set theory, and I believe it was published in the late fifties while he was teaching in the United States. Does anyone have the bibliographical details?



On a set theory booklet by T. Skolem
This seems to fit. It's a short book published by the University of Notre Dame Press. 



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> [MR0156776](http://www.ams.org/mathscinet-getitem?mr=0156776) Skolem, Thoralf A. Abstract set theory. Notre Dame Mathematical Lectures, No. 8. University of Notre Dame Press, Notre Dame, Ind. 1962. v+70 pp.
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As Martin Sleziak points out, it is [on Project Euclid](https://projecteuclid.org/euclid.ndml/1175197470) and may be downloadable depending on your subscriptions. Click the "Table of Contents" tab to get PDF links for each chapter. Unfortunately there are a lot of short chapters and it seems they have to be downloaded separately.


