Columbia subject headings:
Harvard subject headings:
Blok, Aleksandr Aleksandrovich, 1880-1921--Periodicals.
Gosudarstvennyĭ istoriko-literaturnyĭ i prirodnyĭ muzeĭ-zapovednik A.A. Bloka--Periodicals.
Princeton subject headings:
Blok, Aleksandr Aleksandrovich, 1880-1921--Periodicals.
Gosudarstvennyĭ istoriko-literaturnyĭ i prirodnyĭ muzeĭ-zapovednik A.A. Bloka--Periodicals.