HAX ARNOLD C(ED.). (1987). PLANNING STRATEGIES THAT WORK. OXFORD UNIVERSITY PRESS.
Cita Chicago (17th ed.)HAX ARNOLD C(ED.). PLANNING STRATEGIES THAT WORK. NEW YORK: OXFORD UNIVERSITY PRESS, 1987.
Cita MLA (9th ed.)HAX ARNOLD C(ED.). PLANNING STRATEGIES THAT WORK. OXFORD UNIVERSITY PRESS, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.