Gaya APA
NORRIS, C, H., WILBUR, J, B.
(1960).
Elementrary stuctural analysis
.
Bandung:
Gramedia Pustaka Utama.
Gaya MLA
NORRIS, C., Head., WILBUR, John, Benson.
"Elementrary stuctural analysis".
Bandung:
Gramedia Pustaka Utama,
1960.
Text.