Unitas. - University of Santo Tomás. (University of Santo Tomás], 1922)
Subtitle varies.
Historical abstracts. Part B. Twentieth century abstracts0363-27251959-
Historical abstracts. Part A. Modern history abstracts0363-27171959-
America, history and life0002-70651959-
MLA international bibliography of books and articles on the modern languages and literatures (Complete edition)0024-8215