MLA v APA
Introduction to Citations
Credit Is Due (The Attribution Song) by Nina Paley
Citing Indirect Sources
An indirect source is a source cited in another source, and you should try to avoid this. When you have no other choice, use "qtd. in" to indicate the source you actually consulted. For example:
As Carter Martin states, "Only a few characters are more deeply evil, and they incarnate the force and living presence of a chaotic, destructive, and dark principle of evil in the world; these characters are agents of or physical embodiments of the devil" (qtd. in Shaw 474).
Refers to this in Works Cited:
Shaw, Mary Neff. "Responses to God's Grace: Varying Degrees of Doubt in Flannery O'Connor's Character Types." CLA Journal 44.4 (June 2001): 471-479. Rpt. in Short Story Criticism. Ed. Janet Witalec. Vol. 61. Detroit: Gale, 2003. Literature Resource Center. Web. 1 Dec. 2010.