Gaya APA
Smith, G, W. (1983).
Engineering economy: analysis of capital expenditures (ed. 3).
Sebastopol, CA:
The Iowa state University Press.
Gaya MLA
Smith, Gerald, W..
"Engineering economy: analysis of capital expenditures".
ed. 3
Sebastopol, CA:
The Iowa state University Press,
1983.
Text.