Symeon Archbishop of Thessalonike 15th cent..
Treatise on prayer: an explanation of the services conducted in the Orthodox Church /
Symeon of Thessalonike ; translated by H.L.N. Simmons
. - Brookline : Hellenic College Press, 1984
. - xi, 104 p. 22 cm.
- Archbishop Iakovos library of ecclesiastical and historical sources no. 9 .