Dyfyniad APA

Callahan, M. T. (1992). Construction Project Scheduling Michael T. Callahan, Daniel G. Quackenbush, James E. Rowings. Irwin/McGraw-Hill.

Dyfyniad Arddull Chicago

Callahan, Michael T. Construction Project Scheduling Michael T. Callahan, Daniel G. Quackenbush, James E. Rowings. Irwin/McGraw-Hill, 1992.

Dyfyniad MLA

Callahan, Michael T. Construction Project Scheduling Michael T. Callahan, Daniel G. Quackenbush, James E. Rowings. Irwin/McGraw-Hill, 1992.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.