How to cite a revised second edition?
Great question!

Among other challenges, citing this book is not easy because it is part of a series, and the publisher's name is very similar to the series name. 


Publisher: Hutchinson &amp; Co.
Series: Hutchinson University Library (Philosophy)
Series editor: H. J. Paton


I prefer the Chicago Manual of Style, 17th ed. (2017) (hereafter, Chicago), Notes and Bibliography format. I consulted Chicago to write the citations below.

I would cite the book in a note (footnote) like this:


  G. E. M. Anscombe, An Introduction to Wittgenstein's Tractatus, 2nd ed. (1963; repr., New York: Harper &amp; Row, 1965), 27–29. Citations refer to the 1965 Harper &amp; Row reprint.


If I were to cite the book a second time, I would use a shortened citation ("short form") like this:


  Anscombe, Introduction to Wittgenstein's Tractatus, 34.


In the bibliography I would cite the book like this:


  Anscombe, G. E. M. [Gertrude Elizabeth Margaret]. An Introduction to Wittgenstein's Tractatus. 2nd ed., repr. New York: Harper &amp; Row, 1965. First published 1963 by Hutchinson (London). Page references are to the 1965 Harper &amp; Row reprint.


Notes


Professor Anscombe preferred initials instead of her lengthy given name, but since her full name appears occasionally, I chose to provide it in the bibliography.
I made up the page numbers for the note citations.
The names of both publishers are not required for the note, but should be included in the bibliography.
Chicago states that "2nd ed." is enough, i.e., "rev." (revised) is not necessary because most readers assume that a 2nd edition includes revisions.
Chicago advises against citing the series name and editor in most instances.


Sources consulted


AbeBooks.com
Google Books
Stanford Encyclopedia of Philosophy
The Chicago Manual of Style Online
WorldCat.org