Gaya APA

Technology (NIIT), N, I, O, I. (1992). (PASCA) Soil Analysis Hanbook of Reference Methods (Edisi 1). USA: CRC press.

Gaya MLA

Technology (NIIT), National, Institute, Of, Information. "(PASCA) Soil Analysis Hanbook of Reference Methods". Edisi 1 USA: CRC press, 1992. .