Nannetti, G. (1960). Ang abakada ng lupa = Alphabet of the soil. United Nations Educational and Scientific Organization; (Manila) : Bureau of Printing.
Citação norma ChicagoNannetti, Guillermo. Ang Abakada Ng Lupa = Alphabet of the Soil. [Manila: United Nations Educational and Scientific Organization; (Manila) : Bureau of Printing, 1960.
Citação norma MLANannetti, Guillermo. Ang Abakada Ng Lupa = Alphabet of the Soil. United Nations Educational and Scientific Organization; (Manila) : Bureau of Printing, 1960.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.