Lamm, K. K. (2006). Portraiture. In L. Warren (Ed.), Encyclopedia of Twentieth-Century Photography (pp. 1062–1064). Routledge.

Lamm, K. K. “Portraiture.” In Encyclopedia of Twentieth-Century Photography, edited by Lynne Warren, 1062–64. Routledge, 2006.

Lamm KK. Portraiture. In: Warren L, editor. Encyclopedia of Twentieth-Century Photography. Routledge; 2006. p. 1062–4.

Lamm, K. K. “Portraiture.” Encyclopedia of Twentieth-Century Photography, edited by Lynne Warren, Routledge, 2006, pp. 1062–64.

Lamm KK. Portraiture. In: Warren L, editor. Encyclopedia of Twentieth-Century Photography. Routledge; 2006. p. 1062–1064.