Citazione Stile APA (7a Edizione)

Halili, R. W., & Mendigorin, I. M. Exercises in English. Merriam School and Office Supplies.

Citazione stile Chigago Style (17a edizione)

Halili, Remedios Warren, e Irmina Manalo Mendigorin. Exercises in English. Manila: Merriam School and Office Supplies.

Citatione MLA (9a ed.)

Halili, Remedios Warren, e Irmina Manalo Mendigorin. Exercises in English. Merriam School and Office Supplies.