APA
Aquino G. V., . (1991). Introduction to psychology. [Place of publication not identified]: National Book Store.
Chicago
Aquino Gaudencio V, . 1991. Introduction to psychology. [Place of publication not identified]: National Book Store.
Harvard
Aquino G. V., . (1991). Introduction to psychology. [Place of publication not identified]: National Book Store.
MLA
Aquino Gaudencio V, . Introduction to psychology. [Place of publication not identified]: National Book Store. 1991.