Columbia subject headings:
Literature--History and criticism.
Poetry--Authorship.
Simpson, Louis, 1923-2012--Authorship.
Harvard subject headings:
Literature--History and criticism
Poetry--Authorship
Simpson, Louis Aston Marantz, 1923---Authorship.
Princeton subject headings:
Literature--History and criticism.
Poetry--Authorship.
Simpson, Louis Aston Marantz, 1923---Authorship.