Sondra Marshak and Myrna Culbreath

By Both Authors

 * Star Trek: The New Voyages (TOS novel, editors, 1976)
 * The Price of the Phoenix (TOS novel, 1977)
 * Star Trek: The New Voyages 2 (TOS novel, editors, 1978)
 * The Fate of the Phoenix (TOS novel, 1979)
 * The Prometheus Design (TOS novel, 1982)
 * Triangle (TOS novel, 1983)

By Sondra Marshak

 * Star Trek Lives! (reference book, with Jacqueline Lichtenberg, and Joan Winston, 1975)