APA (7th ed.) Citation

Gumpol, W. Y. (2003). Mastery of Sixteen Tenses. Kanisisus.

Chicago Style (17th ed.) Citation

Gumpol, W. Y. Mastery of Sixteen Tenses. Kanisisus, 2003.

MLA (8th ed.) Citation

Gumpol, W. Y. Mastery of Sixteen Tenses. Kanisisus, 2003.

Warning: These citations may not always be 100% accurate.