APA

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

Chicago

O'brien James J, . 1969. Scheduling handbook. New York: McGraw-Hill.

Harvard

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

MLA

O'brien James J, . Scheduling handbook. New York: McGraw-Hill. 1969.