APA引文

(2005). Effect on survey response rate of hand written versus printed signature on a covering letter: Randomised controlled trial [ISRCTN67566265]. BioMed Central.

芝加哥风格引文

Effect on Survey Response Rate of Hand Written versus Printed Signature on a Covering Letter: Randomised Controlled Trial [ISRCTN67566265]. BioMed Central, 2005.

MLA引文

Effect on Survey Response Rate of Hand Written versus Printed Signature on a Covering Letter: Randomised Controlled Trial [ISRCTN67566265]. BioMed Central, 2005.

警告：这些引文格式不一定是100％准确.