Callahan, M. T. (1992). Construction Project Scheduling Michael T. Callahan, Daniel G. Quackenbush, James E. Rowings. Irwin/McGraw-Hill.
Chicago-viite (17. p.)Callahan, Michael T. Construction Project Scheduling Michael T. Callahan, Daniel G. Quackenbush, James E. Rowings. Irwin/McGraw-Hill, 1992.
MLA-viite (8. p.)Callahan, Michael T. Construction Project Scheduling Michael T. Callahan, Daniel G. Quackenbush, James E. Rowings. Irwin/McGraw-Hill, 1992.
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