Paningbatan, E. P. (1977). Effect of nitrogen, phosphorus and potassium fertilization on yield and rhizome quality of ginger [microform]. Photoduplication Service, University of the Philippines Library.
Citazione stile Chigago Style (17a edizione)Paningbatan, Eduardo P. Effect of Nitrogen, Phosphorus and Potassium Fertilization on Yield and Rhizome Quality of Ginger [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.
Citatione MLA (9a ed.)Paningbatan, Eduardo P. Effect of Nitrogen, Phosphorus and Potassium Fertilization on Yield and Rhizome Quality of Ginger [microform]. Photoduplication Service, University of the Philippines Library, 1977.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.