APA Style
Walker, A. N., Krieger- David. ().
The UNIXTM Environment .
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Chicago Style
Walker, A. N., Krieger- David.
The UNIXTM Environment.
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MLA Style
Walker, A. N., Krieger- David.
The UNIXTM Environment.
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,
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.
Turabian Style
Walker, A. N., Krieger- David.
The UNIXTM Environment.
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,
.
.