Cita APA (7a ed.)

Portfolio, T. (1991). Programmer's guide to the ORACLE precompilers: Version 1.4. Oracle.

Cita Chicago Style (17a ed.)

Portfolio, Tom. Programmer's Guide to the ORACLE Precompilers: Version 1.4. Chertsey, Surrey: Oracle, 1991.

Cita MLA (9a ed.)

Portfolio, Tom. Programmer's Guide to the ORACLE Precompilers: Version 1.4. Oracle, 1991.