Gifford, R., Katzourakis, A., Belshaw, R., & Nixon, D. (2009). Paleovirology of human endogenous retroviruses.
芝加哥风格引文Gifford, R., A. Katzourakis, R. Belshaw, 与 D. Nixon. Paleovirology of Human Endogenous Retroviruses. 2009.
MLA引文Gifford, R., et al. Paleovirology of Human Endogenous Retroviruses. 2009.
警告：这些引文格式不一定是100％准确.