Martha Keltz (Keltz, Martha)

• 
  A Maya Trilogy: Three One-Act Plays Plays about Augustus and Alice Le Plongeon, the Nineteenth Century Maya Archaeologists
  by Martha Keltz
  Hardcover, Studio Editions, ISBN 1893592049 (1-893592-04-9)
• 
  Southwest Journey: Studio Editions Dramas
  by Martha Keltz
  Hardcover, Studio Editions, ISBN 1893592197 (1-893592-19-7)
• 
  Three Unusual Scientists: John Keely, Nikola Tesla, Walter Russell Three One-Act Plays
  by Martha Keltz
  Hardcover, Studio Eds, ISBN 1893592138 (1-893592-13-8)
• 
  A Trilogy: Three One-Act Plays
  by Christian Rosencreutz, Martha Keltz
  Hardcover, Studio Editions, ISBN 1893592030 (1-893592-03-0)
• 
  A Twentieth Century Trilogy: Three One-Act Plays
  by Martha Keltz
  Hardcover, Studio Editions, ISBN 189359209X (1-893592-09-X)