Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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