Gaya APA
Salmon, C, G., E., I, J, J. (NULL).
Steel structures design and behavior .
New:
New York: Harper & Row; 1980.
Gaya MLA
Salmon, Charles, G.., E., I., Johnson,, John.
"Steel structures design and behavior".
New:
New York: Harper & Row; 1980,
NULL.
Text.