Gaya APA

Halliday, D. et al (2003). Fundamentals of pysics: enhanced problem version ed.6 (Ed. 6). Norwood, New Jersey: John Wiley n Sons.

Gaya MLA

Halliday, David. et al. "Fundamentals of pysics: enhanced problem version ed.6". Ed. 6 Norwood, New Jersey: John Wiley n Sons, 2003. Textbook.