Cita APA (7th ed.)
Tillery, B. W. (1993). Physical science (2nd ed.). Wm. C. Brown.
Cita Chicago (17th ed.)
Tillery, Bill W. Physical Science. 2nd ed. Dubuque, Iowa: Wm. C. Brown, 1993.
Cita MLA (9th ed.)
Tillery, Bill W. Physical Science. 2nd ed. Wm. C. Brown, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.