TY  - GEN
AU  - Markus, R. A. (Robert Austin), 1924-
TI  - Gregory the Great and his world / R.A. Markus. xxiii, 241 p. : maps ; 23 cm
AV  - BX 1076 .M37 
N1  - Church history--Primitive and early church, ca. 30-600
ER  -