Shapp, M., & Shapp, C. (1961). Let's find out what's in the sky. Franklin Watts.
芝加哥风格引文Shapp, Martha, 与 C. Shapp. Let's Find Out What's in the Sky. New York: Franklin Watts, 1961.
MLA引文Shapp, Martha, 与 C. Shapp. Let's Find Out What's in the Sky. Franklin Watts, 1961.
警告：这些引文格式不一定是100％准确.