SOURCE: Sarti, Ronald. “Variations on a Theme: Human Sexuality in the Work of Robert A. Heinlein.” In Robert A. Heinlein, edited by Joseph D. Olander and Martin Harry Greenberg, pp. 107-36. New York: Taplinger Publishing Co., 1978.
In the following essay, Sarti traces Heinlein's treatment of gender roles and sexuality in his short fiction.