APA (7th ed.) Zitazioa

Shepard, S. (1988). The unseen hand and other plays (Repr.). 1981.

Chicago Style (17th ed.) Zitazioa

Shepard, Sam. The Unseen Hand and Other Plays. Repr. New York: 1981, 1988.

MLA (9th ed.) Zitazioa

Shepard, Sam. The Unseen Hand and Other Plays. Repr. 1981, 1988.