Gaya APA
Walker, H., D., R., R., J. (1981).
Fundamentals of physics second edition (second edition).
New York:
John Wiley & Sons LTD.
Gaya MLA
Walker, H., D., R., R., J..
Fundamentals of physics second edition.
second edition
New York:
John Wiley & Sons LTD,
1981.
Text.