Gaya APA

Purcell, K, F., C., I, K, J. (NULL). An introduction to inorganic chemistry . Philadelphia:: Philadelphia: Saunders College; 1980.

Gaya MLA

Purcell, Keith, F.., C., I., Kotz,, John. "An introduction to inorganic chemistry". Philadelphia:: Philadelphia: Saunders College; 1980, NULL. Text.