Columbia subject headings:
Bŭlgarska pravoslavna t︠s︡ŭrkva. Liturgy of St. John Chrysostom. Bulgarian & Church Slavic.
Orthodox Eastern Church. Liturgy of St. Basil.
Harvard subject headings:
Bŭlgarska pravoslavna t͡sŭrkva. Liturgy of St. John Chrysostom.
Orthodox Eastern Church. Liturgy of St. Basil.
Princeton subject headings:
Bŭlgarska pravoslavna t︠s︡ŭrkva. Liturgy of St. John Chrysostom.
Orthodox Eastern Church. Liturgy of St. Basil