CLELAND, D. I., & KOCAOGLU, D. F. (1981). Engineering management. McGraw-Hill.

CLELAND, David I., and Dundar F. KOCAOGLU. Engineering Management. Auckland: McGraw-Hill, 1981.

CLELAND, David I., and Dundar F. KOCAOGLU. Engineering Management. McGraw-Hill, 1981.