APA (7th ed.) Citation

Ching, G. (1973). 2000 word drills. National Book Store.

Chicago Style (17th ed.) Citation

Ching, Gregorio. 2000 Word Drills. Mandaluyong City: National Book Store, 1973.

MLA (9th ed.) Citation

Ching, Gregorio. 2000 Word Drills. National Book Store, 1973.