APA Style
Sull, Donald N.. ().
Encyclopaedia of educational technology .
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Chicago Style
Sull, Donald N..
Encyclopaedia of educational technology.
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,
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.
MLA Style
Sull, Donald N..
Encyclopaedia of educational technology.
:
,
.
.
Turabian Style
Sull, Donald N..
Encyclopaedia of educational technology.
:
,
.
.