Gaya APA

, ., Leonard...[et.al], I, B. (2004). Concepts and challenges chemical changes . New Jersey: New Jersey: Globe Fearon, 2004.

Gaya MLA

, ., Leonard...[et.al], I., Bernstein,. "Concepts and challenges chemical changes". New Jersey: New Jersey: Globe Fearon, 2004, 2004. Text.