JOHNSON, G. B., & OBER, W. C. (2010). Essentials of the living world. Mc Graw-Hill.
芝加哥风格引文JOHNSON, George B., 与 William C. OBER. Essentials of the Living World. Mc Graw-Hill, 2010.
MLA引文JOHNSON, George B., 与 William C. OBER. Essentials of the Living World. Mc Graw-Hill, 2010.
警告：这些引文格式不一定是100％准确.