APA
Philippine council for agriculture and resources research and development, . (1979). The Philippines recommends for soil fertility management. Philippine: Philippine council for agriculture and resources research and development.
Chicago
Philippine council for agriculture and resources research and development, . 1979. The Philippines recommends for soil fertility management. Philippine: Philippine council for agriculture and resources research and development.
Harvard
Philippine council for agriculture and resources research and development, . (1979). The Philippines recommends for soil fertility management. Philippine: Philippine council for agriculture and resources research and development.
MLA
Philippine council for agriculture and resources research and development, . The Philippines recommends for soil fertility management. Philippine: Philippine council for agriculture and resources research and development. 1979.