APA-viite

Gangal, J. K. (2010). Practical course in spoken english: With audio CD. PHI Learning.

Chicago-tyylinen lähdeviittaus

Gangal, J. K. Practical Course in Spoken English: With Audio CD. New Delhi: PHI Learning, 2010.

MLA-viite

Gangal, J. K. Practical Course in Spoken English: With Audio CD. PHI Learning, 2010.