“Lectures on Polyhedral Topology” by J.R. Stallings, of his lectures in TIFR 1967, is available online. It also has bits of my first research. I think that the appendix to Chapter seven is mine. And 8.9.3, the proof of s-cobordism with prescribed torsion is mine. I did not understand Stallings proof which used Stiefel-Whitney classes which I was not comfortable with at that time. I came up with the argument given here which is now standard, I think.
https://www.maths.ed.ac.uk/~v1ranick/papers/stallpl.pdf
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