APA (7th ed.) Citation

Houston, L. G. (1989). Signs of trespass/signs of play: Proper reading and Under the volcano. [publisher not identified].

Chicago Style (17th ed.) Citation

Houston, Lisa Gail. Signs of Trespass/signs of Play: Proper Reading and Under the Volcano. [Place of publication not identified]: [publisher not identified], 1989.

MLA (9th ed.) Citation

Houston, Lisa Gail. Signs of Trespass/signs of Play: Proper Reading and Under the Volcano. [publisher not identified], 1989.