It happened in Egypt

MLA

Williamson, Charles Norris, and Alice Muriel Williamson. It Happened In Egypt. London: Methuen, 1914.

APA

Williamson, C. Norris, & Williamson, A. Muriel. (1914). It happened in Egypt. London: Methuen.

Chicago

Williamson, Charles Norris, and Alice Muriel Williamson. It Happened In Egypt. London: Methuen, 1914.