Gaya APA
Ulrich, William M., Hayes, Ian S.. (1997).
The Year 2000 software crisi : challenge of the century .
Upper Saddle River, NJ:
Prentice Hall.
Gaya Chicago
Ulrich, William M., Hayes, Ian S..
The Year 2000 software crisi : challenge of the century.
Upper Saddle River, NJ:
Prentice Hall,
1997.
Text.
Gaya MLA
Ulrich, William M., Hayes, Ian S..
The Year 2000 software crisi : challenge of the century.
Upper Saddle River, NJ:
Prentice Hall,
1997.
Text.
Gaya Turabian
Ulrich, William M., Hayes, Ian S..
The Year 2000 software crisi : challenge of the century.
Upper Saddle River, NJ:
Prentice Hall,
1997.
Print.