Columbia subject headings:
Harvard subject headings:
Collectibles--Japan--Yokohama-shi--Catalogs.
Oka, Michitaka, 1900-1984--Private collections--Japan--Yokohama-shi--Catalogs.
Yokohama Kaikō Shiryōkan--Catalogs.
Princeton subject headings:
Yokohama Kaikō Shiryōkan--Exhibitions.
Yokohama-shi (Japan)--Social life and customs--Pictorial works--Exhibitions.