Columbia subject headings:
Mistaken identity--Drama.
Twins--Drama.
Harvard subject headings:
Brothers and sisters--Drama.
Comedy plays
Illyria--Drama.
Mistaken identity--Drama
Shipwreck survival--Drama
Twins--Drama
Princeton subject headings:
Drama.
Illyria--Drama.
Mistaken identity--Drama.
Shipwreck survival--Drama.
Siblings--Drama.
Twins--Drama.