APA引文

McGrath, M. (2020). SQL in easy steps (Fourth edition.). In Easy Steps Limited.

Chicago Style (17th ed.) Citation

McGrath, Mike. SQL in Easy Steps. Fourth edition. Leamington Spa, Warwickshire: In Easy Steps Limited, 2020.

MLA引文

McGrath, Mike. SQL in Easy Steps. Fourth edition. In Easy Steps Limited, 2020.

警告：這些引文格式不一定是100％准確.