Cita APA (7a ed.)

Estolas, J. V. 1. (1974). Child psychology: A modern approach. National Book Store.

Cita Chicago Style (17a ed.)

Estolas, Josefina Villanueva 1928. Child Psychology: A Modern Approach. [Manila]: National Book Store, 1974.

Cita MLA (9a ed.)

Estolas, Josefina Villanueva 1928. Child Psychology: A Modern Approach. National Book Store, 1974.