APA
Das, . (2009). Textbook of Geotechnical Engineering. New Delhi: Cengage Learning India Pvt. Ltd.
Chicago
Das, . 2009. Textbook of Geotechnical Engineering. New Delhi: Cengage Learning India Pvt. Ltd.
Harvard
Das, . (2009). Textbook of Geotechnical Engineering. New Delhi: Cengage Learning India Pvt. Ltd.
MLA
Das, . Textbook of Geotechnical Engineering. New Delhi: Cengage Learning India Pvt. Ltd. 2009.