Armstrong-Wright, A.T. Critical path method : introduction and practice / A.T. Armstrong-Wright - London : Longmans , 1969 - xi, 113p. : ill. ; 22 cm. - Photocopy of the origin . ISBN: 0582410401 Subjects--Topical Terms: PlanningProject analysisCritical path analysis Dewey Class. No.: 338.9 / ARM