APA

O'Brien J. J., . (1969). Scheduling handbook. New York: McGraw-Hill.

Chicago

O'Brien James Jerome, . 1969. Scheduling handbook. New York: McGraw-Hill.

Harvard

O'Brien J. J., . (1969). Scheduling handbook. New York: McGraw-Hill.

MLA

O'Brien James Jerome, . Scheduling handbook. New York: McGraw-Hill. 1969.