APA Style
Grigg, D. B., Behzad, M. A.. ().
The Agricultural systems of the world: an evoluationary approach .
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Chicago Style
Grigg, D. B., Behzad, M. A..
The Agricultural systems of the world: an evoluationary approach.
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MLA Style
Grigg, D. B., Behzad, M. A..
The Agricultural systems of the world: an evoluationary approach.
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,
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.
Turabian Style
Grigg, D. B., Behzad, M. A..
The Agricultural systems of the world: an evoluationary approach.
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,
.
.