Cooper, S. (1976). The grey king. Atheneum.
Chicago Style aipamenaCooper, Susan. The Grey King. New York: Atheneum, 1976.
MLA aipamenaCooper, Susan. The Grey King. Atheneum, 1976.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
Cooper, S. (1976). The grey king. Atheneum.
Chicago Style aipamenaCooper, Susan. The Grey King. New York: Atheneum, 1976.
MLA aipamenaCooper, Susan. The Grey King. Atheneum, 1976.