APA (7th ed.) Citation

Luthra, A. (2007). Echo made easy: [with interactive CD-ROM] (2. ed.). Jaypee Brothers.

Chicago Style (17th ed.) Citation

Luthra, Atul. Echo Made Easy: [with Interactive CD-ROM]. 2. ed. New Delhi: Jaypee Brothers, 2007.

MLA (9th ed.) Citation

Luthra, Atul. Echo Made Easy: [with Interactive CD-ROM]. 2. ed. Jaypee Brothers, 2007.