Puri B. R., Sharma L. R., . (1983). Principles of inorganic chemistry. Jalandhar: Sahaban Lal.
Puri B R, Sharma L R, . 1983. Principles of inorganic chemistry. Jalandhar: Sahaban Lal.
Puri B R, Sharma L R, . Principles of inorganic chemistry. Jalandhar: Sahaban Lal. 1983.