APA
Cruz C. L., . (1995). Introduction to logic. [Place of publication not identified]: National Book Store.
Chicago
Cruz Corazon L, . 1995. Introduction to logic. [Place of publication not identified]: National Book Store.
Harvard
Cruz C. L., . (1995). Introduction to logic. [Place of publication not identified]: National Book Store.
MLA
Cruz Corazon L, . Introduction to logic. [Place of publication not identified]: National Book Store. 1995.