Sawtell, R. (1998). Sam`s teach yourself Microsoft SQL server 6.5 in 21 days. Techmedia.
芝加哥风格引文Sawtell, Rick. Sam`s Teach Yourself Microsoft SQL Server 6.5 in 21 Days. New Delhi: Techmedia, 1998.
MLA引文Sawtell, Rick. Sam`s Teach Yourself Microsoft SQL Server 6.5 in 21 Days. Techmedia, 1998.
警告：这些引文格式不一定是100％准确.