APA-referens (7:e uppl.)

Tillery, B. W. (2012). Physical science (Ninth edition.). McGraw-Hill.

Chicago-referens (17:e uppl.)

Tillery, Bill W. Physical Science. Ninth edition. New York, NY: McGraw-Hill, 2012.

MLA-referens (9:e uppl.)

Tillery, Bill W. Physical Science. Ninth edition. McGraw-Hill, 2012.