Ordinario, F. F. (1978). Response of kaatoan bangkal seedlings to five levels of nitrogen, phosphorous and potassium [microform]. Photoduplication Service, University of the Philippines Library.
Cita Chicago (17th ed.)Ordinario, Felix Fajardo. Response of Kaatoan Bangkal Seedlings to Five Levels of Nitrogen, Phosphorous and Potassium [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1978.
Cita MLA (9th ed.)Ordinario, Felix Fajardo. Response of Kaatoan Bangkal Seedlings to Five Levels of Nitrogen, Phosphorous and Potassium [microform]. Photoduplication Service, University of the Philippines Library, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.