In ksh.1, in the See Also section, this book is referenced: Morris Bolsky and David Korn, The KornShell Command and Programming Language, 2nd Edition, Prentice Hall, 1995, ISBN 0131827006. However, the book with that ISBN number has a different name, as attested to here: https://dl.acm.org/citation.cfm?id=545704&preflayout=flat and by looking up the ISBN on Google and Amazon. (I also own the book with this ISBN number, and can confirm those sources _are_ correct) So if this book is to be referenced, the title given should be: The New KornShell Command and Programming Language The reference to it being a second edition then becomes optional, and fine either way.
However, it may be worthwhile reverting the reference to be to the first edition of the book: https://dl.acm.org/citation.cfm?id=77009&preflayout=flat The 2nd edition is about ksh93, while the first edition is about ksh88. The ksh clone in OpenBSD is not a ksh93 clone. Relevant diff where this change occurred: https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/bin/ksh/ksh.1.diff?r1=1.150&r2=1.151
