Cita APA (7th ed.)

O'Brien, J. J. (1965). CPM in construction management. McGraw-Hill.

Cita Chicago (17th ed.)

O'Brien, James J. CPM in Construction Management. Nueva York: McGraw-Hill, 1965.

Cita MLA (9th ed.)

O'Brien, James J. CPM in Construction Management. McGraw-Hill, 1965.