Galapon, C. R. (1986). Impact of fertilizer usage on agricultural land use patterns and employment. Bureau of Agricultural Economics.
Chicago-Zitierstil (17. Ausg.)Galapon, Catherine R. Impact of Fertilizer Usage on Agricultural Land Use Patterns and Employment. Quezon City: Bureau of Agricultural Economics, 1986.
MLA-Zitierstil (9. Ausg.)Galapon, Catherine R. Impact of Fertilizer Usage on Agricultural Land Use Patterns and Employment. Bureau of Agricultural Economics, 1986.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.