APA引文

Johnson, C. (1955). Harold and the purple crayon. HarperCollins.

Chicago Style (17th ed.) Citation

Johnson, Crockett. Harold and the Purple Crayon. New York: HarperCollins, 1955.

MLA引文

Johnson, Crockett. Harold and the Purple Crayon. HarperCollins, 1955.

警告：這些引文格式不一定是100％准確.