(1970). Essays on agricultural typology and land: Utilization. Panstwowe Wydawnictwo Naukowe.
Citazione stile Chigago Style (17a edizione)Essays on Agricultural Typology and Land: Utilization. Warszawa: Panstwowe Wydawnictwo Naukowe, 1970.
Citatione MLA (9a ed.)Essays on Agricultural Typology and Land: Utilization. Panstwowe Wydawnictwo Naukowe, 1970.
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