APA (7th ed.) Citation

Sargent, P., & Herr, M. (1983). Alien upstairs (First edition.). Doubleday.

Chicago Style (17th ed.) Citation

Sargent, Pamela, and Margo Herr. Alien Upstairs. First edition. Garden City, N.Y.: Doubleday, 1983.

MLA (9th ed.) Citation

Sargent, Pamela, and Margo Herr. Alien Upstairs. First edition. Doubleday, 1983.