Cita APA (7th ed.)

Rao, C. N. R. (1999). Understanding chemistry (1a. ed.). Universities Press.

Cita Chicago (17th ed.)

Rao, C. N. R. Understanding Chemistry. 1a. ed. s.l: Universities Press, 1999.

Cita MLA (9th ed.)

Rao, C. N. R. Understanding Chemistry. 1a. ed. Universities Press, 1999.