APA引文

Preston, D. J. (2010). Impact (Center Point large print ed.). Center Point Pub..

Chicago Style (17th ed.) Citation

Preston, Douglas J. Impact. Center Point large print ed. Thorndike, Me.: Center Point Pub., 2010.

MLA引文

Preston, Douglas J. Impact. Center Point large print ed. Center Point Pub., 2010.

警告：這些引文格式不一定是100％准確.