Columbia subject headings:
Male homosexuality--Japan.
Samurai--Sexual behavior.
Samurai--Social life and customs.
Sex customs--Japan.
Harvard subject headings:
Homesexuality, Male--Japan.
Samurai--Sexual behavior.
Samurai--Social life and customs
Sex customs--Japan
Princeton subject headings:
Homesexuality, Male--Japan.
Samurai--Sexual behavior.
Samurai--Social life and customs.
Sex customs--Japan.