Gaya APA
Swanson, C, P., Freeman, W, A. (1999).
Princiles of modern chemistry study guide and student solutions manual .
San Diego:
San Diego: Sounders College; 1999.
Gaya MLA
Swanson, Carl, P.., Freeman, Wade, A..
"Princiles of modern chemistry study guide and student solutions manual".
San Diego:
San Diego: Sounders College; 1999,
1999.
Text.