Columbia subject headings:
Lepidoptera in literature.
Nabokov, Vladimir Vladimirovich, 1899-1977--Knowledge and learning.
Zoology.
Harvard subject headings:
Lepidoptera in literature.
Nabokov, Vladimir Vladimirovich, 1899-1977--Knowledge--Zoology.
Princeton subject headings:
Lepidoptera in literature.
Nabokov, Vladimir Vladimirovich, 1899-1977--Knowledge--Zoology.