Gaya APA
BALBONI, B, . (2006).
2007 Assemblies Cost Data (2007 Means Assemblies Cost Data) (32nd annual edition).
Miami:
RS Means.
Gaya MLA
BALBONI, Barbara, .
"2007 Assemblies Cost Data (2007 Means Assemblies Cost Data)".
32nd annual edition
Miami:
RS Means,
2006.
Printed.