Παραπομπή APA

(1972). Landscape for living: The yearbook of agriculture, 1972. Washington, D.C: Government Printing Office.

Παραπομπή Chicago Style

Landscape for Living: The Yearbook of Agriculture, 1972. Washington, D.C: Government Printing Office, 1972.

Παραπομπή MLA

Landscape for Living: The Yearbook of Agriculture, 1972. Washington, D.C: Government Printing Office, 1972.

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