APA Style
Davis, Gordon b. (1977).
Elementary Structured Cobol A Step by Step Approach .
Boston:
McGraw-Hill Book Company.
Chicago Style
Davis, Gordon b.
Elementary Structured Cobol A Step by Step Approach.
Boston:
McGraw-Hill Book Company,
1977.
Buku Teks.
MLA Style
Davis, Gordon b.
Elementary Structured Cobol A Step by Step Approach.
Boston:
McGraw-Hill Book Company,
1977.
Buku Teks.
Turabian Style
Davis, Gordon b.
Elementary Structured Cobol A Step by Step Approach.
Boston:
McGraw-Hill Book Company,
1977.
Buku Teks.