Cita APA (7th ed.)

Alcantara, R. D. (1999). Skillbook for speech improvement. Katha.

Cita Chicago (17th ed.)

Alcantara, Rebecca D. Skillbook for Speech Improvement. Quezon City: Katha, 1999.

Cita MLA (9th ed.)

Alcantara, Rebecca D. Skillbook for Speech Improvement. Katha, 1999.