Lenburg, J. (2007). Viva- Facts On File guide to research. Viva Books Pvt. ltd..
芝加哥风格引文Lenburg, Jeff. Viva- Facts On File Guide to Research. New Delhi: Viva Books Pvt. ltd., 2007.
MLA引文Lenburg, Jeff. Viva- Facts On File Guide to Research. Viva Books Pvt. ltd., 2007.
警告：这些引文格式不一定是100％准确.