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.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.