Παραπομπή APA

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

Παραπομπή Chicago Style

Gittinger, J. Price. The Literature of Agricultural Planning. Washington, D.C: National Planning Association, 1966.

Παραπομπή MLA

Gittinger, J. Price. The Literature of Agricultural Planning. Washington, D.C: National Planning Association, 1966.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.