Hornaday, W. T. (1909). Popular official guide to the New York zoological park (10th ed.). New York Zoological Society.
芝加哥风格引文Hornaday, William T. Popular Official Guide to the New York Zoological Park. 10th ed. New York: New York Zoological Society, 1909.
MLA引文Hornaday, William T. Popular Official Guide to the New York Zoological Park. 10th ed. New York Zoological Society, 1909.
警告：这些引文格式不一定是100％准确.