Παραπομπή APA

Das , I., Sharma , A., & Agarwal , N. R. (1997). An introduction to physical chemistry. New age international Ltd.

Παραπομπή Chicago Style

Das , Ishwar, Archana Sharma , και Namitha Rani Agarwal. An Introduction to Physical Chemistry. New Delhi: New age international Ltd, 1997.

Παραπομπή MLA

Das , Ishwar, et al. An Introduction to Physical Chemistry. New age international Ltd, 1997.