Columbia subject headings:
Didactic poetry, English--Bibliography.
English poetry--Early modern, 1500-1700--Bibliography.
English poetry--Middle English, 1100-1500--Bibliography.
English poetry--Old English, ca. 450-1100--Bibliography.
Magic--Poetry--Bibliography.
Science--Poetry--Bibliography.
Harvard subject headings:
Didactic poetry, English--Bibliography.
English poetry--Early modern, 1500-1700--Bibliography
English poetry--Middle English, 1100-1500--Bibliography
English poetry--Old English, ca. 450-1100--Bibliography.
Magic--Poetry--Bibliography.
Science--Poetry--Bibliography.
Princeton subject headings:
Didactic poetry, English--Bibliography.
English poetry--Early modern, 1500-1700--Bibliography.
English poetry--Middle English, 1100-1500--Bibliography.
English poetry--Old English, ca. 450-1100--Bibliography.
Magic--Poetry--Bibliography.
Science--Poetry--Bibliography.