Columbia subject headings:
Agricultural economists--Japan--Biography.
Biographies.
Okada, Yutaka, 1870-1949.
Teikoku Nōkai (Japan)
Harvard subject headings:
Agricultural economists--Japan--Biography.
Okada, Yutaka, 1870-1949.
Teikoku Nōkai (Japan)
Princeton subject headings:
Agricultural administrators--Japan--Biography.
Okada, Yutaka, 1870-1949.
Teikoku Nōkai (Japan)