Cita APA (7th ed.)

(1990). Prentice Hall grammar and composition 1. Pearson Education South Asia.

Cita Chicago (17th ed.)

Prentice Hall Grammar and Composition 1. Jurong, Singapore: Pearson Education South Asia, 1990.

Cita MLA (9th ed.)

Prentice Hall Grammar and Composition 1. Pearson Education South Asia, 1990.