FREEMAN, B. G. (1993). Management In Engineering Principles And Practice Gail Freeman Bell, James Blackwill. s.n.
Chicago Style (17. basım) AtıfFREEMAN, Bell Gail. Management In Engineering Principles And Practice Gail Freeman Bell, James Blackwill. s.n, 1993.
MLA (8th ed.) AtıfFREEMAN, Bell Gail. Management In Engineering Principles And Practice Gail Freeman Bell, James Blackwill. s.n, 1993.
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