Columbia subject headings:
Buddhism--Doctrines--History--Early period, to ca. 250 B.C.
Harvard subject headings:
Buddhism--History
Tipiṭaka. Suttapiṭaka. Saṃyuttanikāya. Selections. Korean
Tipiṭaka. Suttapiṭaka. Saṃyuttanikāya.
Princeton subject headings:
Buddhism--Doctrines.
Tipiṭaka. Suttapiṭaka. Saṃyuttanikāya--Criticism, interpretation, etc.