APA Style
Hibberd, Peter R., Angles, Jacob.. ().
Encyclopaedia of Extension Education. .
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Chicago Style
Hibberd, Peter R., Angles, Jacob..
Encyclopaedia of Extension Education..
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MLA Style
Hibberd, Peter R., Angles, Jacob..
Encyclopaedia of Extension Education..
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,
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Turabian Style
Hibberd, Peter R., Angles, Jacob..
Encyclopaedia of Extension Education..
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,
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.