Why would putting the date in the subfield k, in parentheses, show it relates to the work, not the expression? I’m guessing it’s because as the passage you quoted says, it distinguishes the AAP from an “identical title, entered under the same name.” So the additional f subfield distinguishes between different expressions of the same work. Could you also just do it as “Selections. 2013” with no subfield code between?
Perhaps the year should be put into subfield $k instead of $f:
Edwards, Jonathan, $d 1703-1758. $t Works. $k Selections (2013)
This helps clarify that the date 2013 is an element relating to the work, not to an expression. Unfortunately MARC only has an element called "Date of work", not also one called "Date of expression". In the definition of subfield $f is this: "Date added parenthetically to a title to distinguish between identical titles entered under the same name is not separately subfield coded." The references to RDA 6.4 and 6.10 for this MARC element in Cataloger's Desktop indicate that despite the definition of the element, it's really used for both works and expressions...
(Of course, this would be less of a problem if we stopped subscribing to the erroneous belief that RDA actually calls for using this kind of CCT in the case of a compilation bearing its own title.)
Kevin M. Randall
Principal Serials Cataloger
Northwestern University Library
Proudly wearing the sensible shoes since 1978!