http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Differential response of four upland rice (Oryza sativa L.) cultivars to phosphorus fertilization on an alfisol and ultisol in southwestern and southeastern Nigeria
Microfilm. Ann Arbor, Mich. : University Microfilms International, 1983. 1 microfilm reel ; 35 mm.