Gaya APA
Townsend, D, P., Dudley, D, W.
(1992).
Dudley`s gear handbook
(
2nd ed.)
.
New York:
McGraw-Hill.
Gaya MLA
Townsend, Dennis, P.., Dudley, Darle, W..
"Dudley`s gear handbook".
2nd ed.
New York:
McGraw-Hill,
1992.
Text.