APA Style
Keen, B.A.. (1931).
The physical properties of the soil .
London:
Longmans.
Chicago Style
Keen, B.A..
The physical properties of the soil.
London:
Longmans,
1931.
Hard Copy.
MLA Style
Keen, B.A..
The physical properties of the soil.
London:
Longmans,
1931.
Hard Copy.
Turabian Style
Keen, B.A..
The physical properties of the soil.
London:
Longmans,
1931.
Hard Copy.