Dyfyniad APA

Gittinger, J. P. (1966). The literature of agricultural planning. National Planning Association.

Dyfyniad Arddull Chicago

Gittinger, James Price. The Literature of Agricultural Planning. [Washington]: National Planning Association, 1966.

Dyfyniad MLA

Gittinger, James Price. The Literature of Agricultural Planning. National Planning Association, 1966.

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