Gaya APA

Halliday, ., Jearl, I, R, I, W. (2011). Principles of physics : Ed-9 (ED-9). New Jersey: .

Gaya MLA

Halliday, ., Jearl, I., Resnick, II., Walker,. "Principles of physics : Ed-9". ED-9 New Jersey: , 2011. .