Dyfyniad APA

Lewis,W Arthur. (1966). Development planning: Essentials of economic policy. George Allen & Unwin.

Dyfyniad Arddull Chicago

Lewis,W Arthur. Development Planning: Essentials of Economic Policy. London: George Allen & Unwin, 1966.

Dyfyniad MLA

Lewis,W Arthur. Development Planning: Essentials of Economic Policy. George Allen & Unwin, 1966.

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