Citazione Stile APA (7a Edizione)

Avila, D. M., Cruz, M. B. L., & Trajano, M. G. (2003). Essentials of English: Study and thinking skills. Mutya Publ. House.

Citazione stile Chigago Style (17a edizione)

Avila, Dorcas M., Ma. Beatriz L. Cruz, e Mercedes G. Trajano. Essentials of English: Study and Thinking Skills. Valenzuela City: Mutya Publ. House, 2003.

Citatione MLA (9a ed.)

Avila, Dorcas M., et al. Essentials of English: Study and Thinking Skills. Mutya Publ. House, 2003.