Gaya APA
Davies, D.B.. (1993).
Soil management (text).
London:
Farming Press.
Gaya Chicago
Davies, D.B..
Soil management.
text
London:
Farming Press,
1993.
Tesis.
Gaya MLA
Davies, D.B..
Soil management.
text
London:
Farming Press,
1993.
Tesis.
Gaya Turabian
Davies, D.B..
Soil management.
text
London:
Farming Press,
1993.
Tesis.