Cita APA (7a ed.)

lester, a. (1982). project planning and control. butterworth & co publishers Ltd.

Cita Chicago Style (17a ed.)

lester, albert. Project Planning and Control. london: butterworth & co publishers Ltd, 1982.

Cita MLA (9a ed.)

lester, albert. Project Planning and Control. butterworth & co publishers Ltd, 1982.