Gaya APA
Stammer,Jr., P, H, W, N, J, A, R, J. (1997).
Transportation Engineering: planning and design (4).
New York:
John Wiley & Sons, Inc.
Gaya MLA
Stammer,Jr., Paul, H., Wright,, Norman, J., Ashford,, Robert, J..
"Transportation Engineering: planning and design".
4
New York:
John Wiley & Sons, Inc,
1997.
Text.