Gaya APA
Sillanpaa, M. (1982).
Micronutrients and The Nutriet Status of Soils (Edisi 48).
Finland:
Werner Soderstrom Osakeyhtio.
Gaya MLA
Sillanpaa, Mikko.
"Micronutrients and The Nutriet Status of Soils".
Edisi 48
Finland:
Werner Soderstrom Osakeyhtio,
1982.
Text.