APA Style
Davis, William S., Mitchell, Philip L. R.. ().
COBOL : an introduction to structured logic and modular program design .
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Chicago Style
Davis, William S., Mitchell, Philip L. R..
COBOL : an introduction to structured logic and modular program design.
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.
MLA Style
Davis, William S., Mitchell, Philip L. R..
COBOL : an introduction to structured logic and modular program design.
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.
Turabian Style
Davis, William S., Mitchell, Philip L. R..
COBOL : an introduction to structured logic and modular program design.
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,
.
.