Gaya APA
Gordon, G. et al (1990).
Quantitative decisi making for business (3rd ed.).
Englewood Cliffs, N.J:
Prentice - Hall, Inc.
Gaya MLA
Gordon, Gilbert.. et al.
"Quantitative decisi making for business".
3rd ed.
Englewood Cliffs, N.J:
Prentice - Hall, Inc,
1990.
Text.