APA Style
Riggs, James L. ().
Engineering Economics .
United States of America:
Library of Congress.
Chicago Style
Riggs, James L.
Engineering Economics.
United States of America:
Library of Congress,
.
Text.
MLA Style
Riggs, James L.
Engineering Economics.
United States of America:
Library of Congress,
.
Text.
Turabian Style
Riggs, James L.
Engineering Economics.
United States of America:
Library of Congress,
.
Print.